/*
Copyright 2012 Ville Rantanen

 This program is free software: you can redistribute it and/or modify it
 under the terms of the GNU Lesser General Public License as published
 by the Free Software Foundation, either version 3 of the License, or
 (at your option) any later version.

 This program is distributed in the hope that it will be useful,
 but WITHOUT ANY WARRANTY; without even the implied warranty of
 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 GNU Lesser General Public License for more details.

 You should have received a copy of the GNU Lesser General Public License
 along with this program.  If not, see <http://www.gnu.org/licenses/>.

 See other included library licenses further down the file.
 
 
 */
var maxThumb=10;
var uagent = navigator.userAgent.toLowerCase();
var pathlist=[];
var pathimage=[];
var imagelist=[];
var filelist=[];
var imagedesc=[];
var imagetime=[];
var marklist=[]
var currentimage=-1;
var currentlist=-1;
var originals=false;
var fullscreen=false;
var zoom=false;
var preloader;
var slideshowtimer;
var slideshowinterval;
var configupdatetimer;
var sorttype="";

function setup() {
    // Setup run at the load of page.
    if (notsupported()) {
        return;
    }
    //hidethumbs();
    document.onkeydown=keypressed;
    slideshowinterval=request('auto');
    if (slideshowinterval!=0) {
        slideshowtimer=setInterval('slidenext()',1000*Math.abs(slideshowinterval));
    }
    fullscreen=request('full')==1;
    originals=request('orig')==1;
    request('sort');
    var req=request('p');
    if (req==-1) { req=request('q'); }
    if (req!=-1) {
        showimage(req);
    } else {
        thumblist(0,-1);
        subfolderbiglist();
    }
    return;
}

function showimage(i) {
    // Main function to show a single image
    if (i>imagelist.length-1 || i<0) { return; }
    thumblist(i,i);
    showbigimage(i);
    preload(i);
    subfoldersmalllist();
    currentimage=i;
    setProgress(i);
    return;
}

function showbigimage(i) {
    // The medium version of image in the big image container
    if (i==-1) { return; }
    var ob=document.getElementById('imagecontainer');
    var width=document.body.clientWidth-30;
    var height=document.body.clientHeight-225;
    if (fullscreen) { height=height+200; }
    if (originals) { mediumstr=encodeURIComponent(imagelist[i]);  }
    else { mediumstr='_med/med_'+encodeURIComponent(imagelist[i])+'.jpg'; }
	var zoomStr="";
	if (zoom) {
		zoomStr=' class="cloud-zoom" rel="position: \'inside\' , showTitle: false, adjustX:-4, adjustY:-4, smoothMove:1"';
	}
    ob.innerHTML='<div id="imagebig"><a href="'+encodeURIComponent(imagelist[i])+'" target="_blank"'+
            zoomStr+'><img id="imagesingle" src="'+mediumstr+'"></a></div>';
    document.getElementById('imagesingle').style.maxWidth=width;
    ob.style.height=height;
    document.getElementById('imagesingle').style.maxHeight=height;
    var dc=document.getElementById('desccontainer');
    dc.innerHTML=getProgressEl()+currentlink(i)+imagedesc[i];
    dc.style.display='block';
    if (zoom) {
		$('.cloud-zoom').CloudZoom();
        setInterval(function(){
   		    $('#imagebig').css('width',$('#imagesingle').css('width'));
        }, 1000);
	}
	return;
}

function currentlink(i) {
    // gets the search term for this image
    index = location.href.split("?");
    s='<a title="Link to this page" href="'+index[0]+'?q='+escape(imagelist[i])+'">['+String(i+1)+']</a> ';
    return s;
}

function preload(i) {
    // preloads left and right images
    if (imagelist.length==0) { return; }
    ob=document.getElementById('preloadcontainer');
    right=Math.max(0,i+1);
    right=Math.min(right,imagelist.length-1);
    left=Math.max(0,i-1);
    left=Math.min(left,imagelist.length-1);
    if (originals) { 
        prestr='<img src="'+encodeURIComponent(imagelist[left])+'" />';
        prestr+='<img src="'+encodeURIComponent(imagelist[right])+'" />'; 
    } else { 
        prestr='<img src="_med/med_'+encodeURIComponent(imagelist[left])+'.jpg" />';
        prestr+='<img src="_med/med_'+encodeURIComponent(imagelist[right])+'.jpg" />'; 
    }
    maxThumb=getmaxthumbs();
    ends=getThumbStartEnd(i+maxThumb,maxThumb);
    for (n=ends.first; n<ends.last; n++) {
        prestr+='<img src="_tn/tn_'+encodeURIComponent(imagelist[n])+'.jpg"/>';
    }
    ends=getThumbStartEnd(i-maxThumb,maxThumb);
    for (n=ends.first; n<ends.last; n++) {
        prestr+='<img src="_tn/tn_'+encodeURIComponent(imagelist[n])+'.jpg"/>';
    }
    ob.innerHTML=prestr;
    preloadcheck();
    preloader=setInterval('preloadcheck()',100);
    return;
}
function preloadcheck() {
    var imgs=document.getElementById('preloadcontainer').childNodes;
    var tob=document.getElementById('desccontainer');
    var completed=preloadcheckcount();
    var colorValue=32*completed/imgs.length + 223;
    tob.style.backgroundColor="rgb("+colorValue+","+colorValue+","+colorValue+")"; 
    if (imgs.length==completed) { clearInterval(preloader); tob.style.backgroundColor="rgb(255,255,255)"; }
    return;
}
function preloadcheckcount() {
    var imgs=document.getElementById('preloadcontainer').childNodes;
    var completed=0;
    for (i=0;i<imgs.length;i++) {
        if (imgs[i].complete) { completed++; }
    }
    return completed;
}

function thumblist(n,curr) {
    // creates the short thumbnail list
    maxThumb=getmaxthumbs();
    if (imagelist.length==0) { return; }
    ob=document.getElementById('thumbcontainer');
    ob.style.width=document.body.clientWidth-30;
    ends=getThumbStartEnd(n,maxThumb);
    currentlist=ends.last;
    nright=ends.last-Math.round((maxThumb/2))+maxThumb-1;
    nleft=nright-maxThumb-maxThumb;
    if (maxThumb%2==1) { nright+=1; nleft+=1; }
    leftstr='<span title="[shift left arrow]" id="arrowleft" class="thumbbox" onclick="thumblist('+String(nleft)+','+String(curr)+')">&larr; <div class="arrowtext">('+ends.first+')</div></span>';
    rightstr='<span title="[shift right arrow]" id="arrowright" class="thumbbox" onclick="thumblist('+String(nright)+','+String(curr)+')">&rarr; <div class="arrowtext">('+(imagelist.length-ends.last)+')</div></span>';
    menustr='<span id="thumbmenu" class="thumbmenu"><span id="allthumbs" class="menuitem" onclick="allthumbs()" title="show all thumbs">all thumbnails</span>'+
           ' <span class="menuitem" id="setupbutton" onclick="usersetupflip()">(S)etup</span>';
    thumbstr='<div><span class="headsmall">Images</span>'+menustr+'</div><div id="thumbrow">'+leftstr;
    for (i=ends.first; i<ends.last; i++) {
        thumbstr+='<span id="n'+i+'" class="imagebox thumbbox"><img class="thumbimage" title="'+titlestring(imagedesc[i])+'" onclick="showimage('+String(i)+')" src="_tn/tn_'+encodeURIComponent(imagelist[i])+'.jpg"><br/><a href="'+encodeURIComponent(imagelist[i])+'" target="_blank" title="'+titlestring(imagedesc[i])+'">'+nicestring((imagelist[i]))+'</a></span>';
    }
    thumbstr+=rightstr+'</div>';
    ob.innerHTML=thumbstr;
    if (curr>-1) {
        c=document.getElementById('n'+curr);
        if (c) {c.className="imagebox thumbbox rounded"; }
    }
    if (marklist.length>0) {
        for (m in marklist) {
            var mth=document.getElementById('n'+marklist[m])
            if (mth!=null) {
                mth.className+=" marked";
            }
        }
    }
    return;
}

function getProgressEl() {
    // returns an empty progressbar
    return '<hr id="progressbar"/>'
}

function setProgress(i) {
    // Sets the progess bar width
    var el = document.getElementById("progressbar");
    if (el != null) {
        el.style.width=parseInt(100*(i+1)/(imagelist.length))+'%';
    }
    return
}

function getThumbStartEnd(n,maxThumb) {
    // Sets the thumbnail list first and last shown item to sensible values
    startI=Math.max(0,n+1-Math.round((maxThumb/2)));
    startI=Math.min(startI,imagelist.length-maxThumb);
    startI=Math.max(0,startI);
    endI=Math.min(startI+maxThumb,imagelist.length);
    return {first: startI, last: endI}
}

function allthumbs() {
    // Shows all the thumbnails in the current folder
    ob=document.getElementById('thumbcontainer');
    thumbstr='<h2>Images</h2><div id="thumbrow">';
    for (i=0; i<imagelist.length; i++) {
        thumbstr+='<span id="n'+i+'" class="imagebox thumbbox"><img title="'+titlestring(imagedesc[i])+'" onclick="showimage('+String(i)+')" src="_tn/tn_'+(encodeURIComponent(imagelist[i]))+'.jpg"><br/><a href="'+(encodeURIComponent(imagelist[i]))+'" target="_blank">'+nicestring(imagelist[i])+'</a></span>';
    }
    thumbstr+='</div>';
    ob.innerHTML=thumbstr;
    ic=document.getElementById('imagecontainer');
    ic.innerHTML='';
    ic.style.height=0;
    dc=document.getElementById('desccontainer');
    dc.style.display='none';
    currentimage=-1;
    return;
}

function subfoldersmalllist() {
    // Shows a small subfolder list
    ob=document.getElementById('pathcontainer');
    pathstr='<span class="pathsmalllink">Subfolders: ';
    pathstr+='<span class="pathsmalllink">(<a href="javascript:void(0);" onclick="subfoldersmalllist();">text</a> <a href="javascript:void(0);" onclick="subfolderbiglist();">icon</a> <a href="javascript:void(0);" onclick="subfolderdetaillist();">list</a>)</span> ';
    for (p=0; p<pathlist.length; p++) {
        pathstr+='<a href="'+encodeURI(pathlist[p][0])+'/index.html">'+nicestring(pathlist[p][0])+'</a>('+String(pathlist[p][1])+')/ ';
    }
    pathstr+='</span>';
    if (pathlist.length==0) {
        ob.innerHTML='';
    } else { ob.innerHTML=pathstr; }
    return;
}
function subfolderbiglist() {
    // Shows a subfolder list with thumbnails
    ob=document.getElementById('pathcontainer');
    pathstr='<h2>Subfolders: <span class="pathsmalllink">(<a href="javascript:void(0);" onclick="subfoldersmalllist();">text</a> <a href="javascript:void(0);" onclick="subfolderbiglist();">icon</a> <a href="javascript:void(0);" onclick="subfolderdetaillist();">list</a>)</span></h2>';
    for (p=0; p<pathlist.length; p++) {
        if (pathimage[p].length>0) {
            imgstr='<span class="pathbox" id="p'+p+'" style="background-image:url(\''+encodeURI(pathimage[p])+'\');">';
        } else { imgstr='<span class="pathbox" id="p'+p+'">'; }
        pathstr+='<a title="'+pathlist[p][0]+'" href="'+encodeURI(pathlist[p][0])+'/index.html">'+imgstr+'<span class="pathlink"><span class="pathlinktext">'+nicestring(pathlist[p][0])+' ('+String(pathlist[p][1])+')</span></span></span></a>';
    }
    if (pathlist.length==0) {
        ob.innerHTML='';
    } else { ob.innerHTML=pathstr; }
    return;
}
function subfolderdetaillist() {
    // Shows a subfolder list with thumbnails
    ob=document.getElementById('pathcontainer');
    pathstr='<h2>Subfolders: <span class="pathsmalllink">(<a href="javascript:void(0);" onclick="subfoldersmalllist();">text</a> <a href="javascript:void(0);" onclick="subfolderbiglist();">icon</a> <a href="javascript:void(0);" onclick="subfolderdetaillist();">list</a>)</span></h2>';
    for (p=0; p<pathlist.length; p++) {
        if (pathimage[p].length>0) {
            imgstr='<span class="pathbox" id="p'+p+'" style="background-image:url(\''+encodeURI(pathimage[p])+'\');position:relative;top:-35px;" >';
        } else { imgstr='<span class="pathbox" id="p'+p+'">'; }
        pathstr+='<div class="pathdetailrow"><a title="'+pathlist[p][0]+'" href="'+encodeURI(pathlist[p][0])+'/index.html">'+imgstr+'</span><span class="pathdetaillink"><span class="pathdetaillinktext">'+(pathlist[p][0])+' ('+String(pathlist[p][1])+')</span></span></a></div>';
    }
    if (pathlist.length==0) {
        ob.innerHTML='';
    } else { ob.innerHTML=pathstr; }
    return;
}
function sortlist(property) {
    // sorts the image list based on time or name, or reverse sort
    var templist=[]
    var tempmark=[]
    var tempcurrent=imagelist[currentimage];
    for (i in imagelist) {
        templist.push({name:imagelist[i], time:imagetime[i], desc:imagedesc[i]});
    }
    for (i in marklist) {
        tempmark.push(imagelist[marklist[i]]);
    }
    if (property=='time') {
        templist.sort(function(a,b) {
            return a.time-b.time
        })
    }
    if (property=='alpha') {
        templist.sort(function(a, b){
            if (a.name < b.name) 
                return -1 
            if (a.name > b.name)
                return 1
            return 0
        })
    }
    if (property=='rev') {
        templist.reverse();
    }
    for (i in imagelist) {
        imagelist[i]=templist[i].name;
        imagetime[i]=templist[i].time;
        imagedesc[i]=templist[i].desc;
        if (imagelist[i] == tempcurrent) {
            currentimage=parseInt(i);
        }
    }
    var markidx=0;
    marklist=[];
    for (i in tempmark) {
        markidx=imagelist.indexOf(tempmark[i]);
        if (markidx!=-1) {
            marklist.push(markidx);
        }
    }
    thumblist(currentimage,currentimage);
    return;
}

function request(type) {
    // Check for URL queries
    var queries = location.search.substr(1).split("&");
    for (que=0;que<queries.length;que++) {
        var query = queries[que].split("=");
        if (type=="q") {
        // Fetch ?q=search request and present first match.
            if ((query[0]=="q") && query.length>1 && query[1].length>0) {
                for (imname in imagelist) {
                    if (imagelist[imname].indexOf(unescape(query[1])) != -1) {
                        return parseInt(imname);
                        break;
                    }
                }
            }
        }
        if (type=="p") {
        // Fetch ?p=position request and return the integer
            if ((query[0]=="p") && query.length>1 && query[1].length>0) {
                var retval=parseInt(query[1]);
                if (isNaN(retval)) { return -1; }
                retval=Math.max(1,retval);
                retval=Math.min(retval,imagelist.length);
                return retval-1;
            }
        }
        if (type=="auto") {
        // Fetch ?auto=num seconds request and return the boolean
            if ((query[0]=="auto") && query.length>1 && query[1].length>0) {
                var retval=parseInt(query[1]);
                if (isNaN(retval)) { return 0; }
                return retval;
            } 
        }
        if (type=="full") {
        // Fetch ?full=1
            if ((query[0]=="full") && query.length>1 && query[1].length>0) {
                var retval=parseInt(query[1]);
                if (isNaN(retval)) { return 0; }
                return retval;
            } 
        }
        if (type=="orig") {
        // Fetch ?orig=1
            if ((query[0]=="orig") && query.length>1 && query[1].length>0) {
                var retval=parseInt(query[1]);
                if (isNaN(retval)) { return 0; }
                return retval;
            } 
        }
        if (type=="sort") {
        // Fetch ?sort=n|t|nr|nt
            if ((query[0]=="sort") && query.length>1 && query[1].length>0) {
                var order=query[1].substring(0,1);
                var rev=query[1].substring(1,2)=="r"
                if (order=="n") { sortlist('alpha'); }
                if (order=="t") { sortlist('time'); }
                if (rev) { sortlist('rev'); }
                return 0;
            } 
        }
    }
    if (type=="auto") { return 0; }
    return -1;
}

function markitem(i) {
    // Adds an item in a list of selected images
    if (imagelist.length==0) { return; }
    if (i==-1) { return; }
    var lel=document.getElementById('listcontainer');
    if (lel.innerHTML.length<4) { 
        lel.innerHTML='<div><div id="markmenu" class="thumbmenu"><span>Marked:</span>'+
                '<span class="menuitem" id="markeditbutton" onclick="marklisteditor();">edit</span>'+
                '<span class="menuitem" id="marktablebutton" onclick="marklisttable();">copy</span>'+
                '</div><div id="marklist"></div></div>';
    }
    var existidx=marklist.indexOf(i);
    if (existidx==-1) {
        marklist.push(i);
    } else {
        marklist.splice(existidx,1);
    }
    marklisteditor();
    showimage(i);
    return;
}

function unmarkitem(i) {
    // remove an item from selection list
    marklist.splice(i,1);
    marklisteditor();
    showimage(currentimage);
    return;
}

function marklisteditor() {
    // print out an editor view of the selection list
    var mel=document.getElementById('marklist');
    var liststr='';
    var dlstr='<a href="data:text/csv,File%0A';
    for (i in marklist) {
        liststr+='<div><span class="menuitem thumbmenu" onclick="unmarkitem('+i+');">X</span>'+
                 '<span class="thumbmenu markedtext" onclick="showimage('+marklist[i]+');">'+imagelist[marklist[i]]+'</span></div>';
        dlstr+=imagelist[marklist[i]]+'%0A';
    }
    dlstr+='">Download as file</a>';
    liststr+='<div class="thumbmenu">'+
                '<span class="menuitem" id="markdeletebutton" onclick="deletemarklist();">delete list</span>'+
                '<span class="menuitem"></span>'+
                '<span class="menuitem" id="markdownloadbutton">'+dlstr+'</span>'+
                '</div>';
    mel.innerHTML=liststr;
    return;
}

function marklisttable() {
    // print out a copy-pastable text box of the selection list
    var mel=document.getElementById('marklist');
    mel.innerHTML='<form><textarea id="marktable" readonly name="selection">"File"\r\n</textarea></form>';
    var cel=document.getElementById('marktable');
    cel.onclick=marklistselect;
    cel.onblur=marklistblur;
    cel.cols=80;
    cel.hasfocus=false;
    for (i in marklist) {
        cel.value=cel.value+'"'+imagelist[marklist[i]]+'"\r\n';
    }
    var rows=cel.value.split(/\r?\n|\r/).length + 1;
    cel.rows=rows;
    marklistselect();
    return;
}

function deletemarklist() {
    // delete the selection list
    var answer = confirm("Delete your selection list?")
    if (answer) {
        var lel=document.getElementById('listcontainer');
        lel.innerHTML='';
        marklist=[];
        showimage(currentimage);
    }
    return
}

function marklistselect() {
    // set focus to selection list text area
    var cel=document.getElementById('marktable');
    cel.hasfocus=true;
    cel.select();
}

function marklistblur() {
    // set blur to selection list text area
    var cel=document.getElementById('marktable');
    cel.hasfocus=false;
}
function ArrayToURL(array) {
    var pairs = [];
    for (var key in array) {
        if (array.hasOwnProperty(key))
        { pairs.push(encodeURIComponent(key) + '=' + encodeURIComponent(array[key])); }
    }
    return pairs.join('&');
}
function nicestring(s) {
    // Return a nice version of a string
    s=String(s);
    if (s.length<20) {
        return s;
    }
    s=s.replace(/_/g,' ');
    s=s.replace(/-/g,' ');
    if (s.length>30) {
      s=s.substring(0,26)+'..'+s.substring(s.length-4);  
    }
    return s;
}

function titlestring(s) {
    // Return a nice version of a string for title attribute
    s=s.replace(/"/g,"&quot;");
    s=s.replace(/<\/?[^>]+(>|$)/g, "");
    return s;
}

function flipConfigVar(variable) {
    // Flip content of a boolean config variable
    if (variable)
        { variable=false; }
    else 
        { variable=true; }
	return variable
}

function fliporiginals() {
    // Use original images / medium size jpegs
	originals=flipConfigVar(originals);
    showimage(currentimage);
}

function flipfullscreen() {
    // show thumbrow / not
    fullscreen=flipConfigVar(fullscreen);
	if (fullscreen)
        { document.getElementById('imagecontainer').scrollIntoView(true); }
    else 
        { document.getElementById('crumbcontainer').scrollIntoView(true); }
    showimage(currentimage);
}
function flipzoom() {
    // show zoomer / not
    zoom=flipConfigVar(zoom);      
    showimage(currentimage);
}
function getmaxthumbs() {
    return Math.floor((document.body.clientWidth-30)/100)-2;
}

function hidethumbs() {
    // hide all thumbnails (obsolete)
    if (notsupported()) {
        return;
    }
    for (n=0; n<imagelist.length; n++) {
        document.getElementById('n'+n).style.display="none";
    }
    return;
}

function slidenext() {
    var imgs=document.getElementById('preloadcontainer').childNodes;
    var completed=preloadcheckcount();
    if (imgs.length==completed) {
        if (slideshowinterval<0) {
            currentimage-=1;
            if (currentimage<0) { currentimage=imagelist.length-1; }
        } else { 
            currentimage+=1;
            if (currentimage>(imagelist.length-1)) { currentimage=0; }
        }
        showimage(currentimage);
    }
}
function slidesetupfromconfig() {
    var el=document.getElementById('configSlideInterval');
    var newinterval=parseInt(el.value);
    if (isNaN(newinterval)) { newinterval=0; }
    el.value=newinterval;
    slideshowinterval=newinterval;
    if (slideshowtimer) { clearInterval(slideshowtimer); }
    if (slideshowinterval!=0) {
        slideshowtimer=setInterval('slidenext()',1000*Math.abs(slideshowinterval));
    }
    return;
}

function keypressed(e) {
    //if (currentimage==-1) { return; }
    if (document.getElementById('marklist')!=null) {
        if (document.getElementById('marklist').hasfocus) { return; } }
    var evtobj=window.event? event : e; //distinguish between IE's explicit event object (window.event) and Firefox's implicit.
    var unicode=evtobj.charCode? evtobj.charCode : evtobj.keyCode;
    maxThumb=getmaxthumbs();
    var shift=evtobj.shiftKey;
    // shift end: move to last image
    if (unicode==35 && shift==1) { 
        currentimage=imagelist.length-1; 
        showimage(currentimage);
    }
    // shift home: move to first item
    if (unicode==36 && shift==1) {
        currentimage=0; 
        showimage(currentimage);
    }
    // arrow left, j: move 1 left
    if ((unicode==37 || unicode==74 ) && shift==0) { 
        currentimage-=1;
        if (currentimage<0) { currentimage=imagelist.length-1; }
        showimage(currentimage);
    }
    // shift arrow left, j: move 1 page left
    if ((unicode==37 || unicode==74 ) && shift==1) { 
        currentimage-=maxThumb;
        if (currentimage<0) { currentimage=imagelist.length-1; }
        showimage(currentimage);
    }
    // arrow right, k: move 1 right
    if ((unicode==39 || unicode==75) && shift==0) {
        currentimage+=1;
        if (currentimage>(imagelist.length-1)) { currentimage=0; }
        showimage(currentimage);
    }
    // shift arrow right, k: move 1 page right
    if ((unicode==39 || unicode==75) && shift==1) {
        currentimage+=maxThumb;
        if (currentimage>(imagelist.length-1)) { currentimage=0; }
        showimage(currentimage);
    }
    // f: fullscreen
    if (unicode==70) {
        flipfullscreen();
    }
    // o: originals
    if (unicode==79) {
        fliporiginals();
    }
    // s: setup
    if (unicode==83) {
        usersetupflip();
    }
    // x: mark image
    if (unicode==88) {
        markitem(currentimage);   
    }
    if (slideshowinterval!=0) {
        clearInterval(slideshowtimer);
        slideshowtimer=setInterval('slidenext()',1000*Math.abs(slideshowinterval));
    }
	   // z: zoomer
    if (unicode==90) {
        flipzoom();
    }
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    return;
}
function usersetupflip() {
    if (document.getElementById('setupcontainer')) { 
        usersetupclose();
    } else {
        usersetup();
    }
    return
}
function usersetup() {
    if (!document.getElementById('setupcontainer')) { 
        el=getsetupwindow();
        document.body.appendChild(el);
        el.scrollIntoView(true);
        document.getElementById('configSlideInterval').value=slideshowinterval;
        usersetupupdate();
        configupdatetimer=setInterval('usersetupupdate()',500);
    }
    return
}
function usersetupclose() {
    if (document.getElementById('setupcontainer')) { 
        var el=document.getElementById('setupcontainer')
        el.parentNode.removeChild(el);
        clearInterval(configupdatetimer);
    }
    return
}
function usersetupupdate() {
    var el=document.getElementById('configFullscreen');
    if (fullscreen) { el.value='Fullscreen: True'; }
               else { el.value='Fullscreen: False'; }
    el=document.getElementById('configOriginals');
    if (originals) { el.value='Originals: True'; }
              else { el.value='Originals: False'; }
    el=document.getElementById('configZoom');
    if (zoom) { el.value='Zoom: True'; }
              else { el.value='Zoom: False'; }
	el=document.getElementById('configExample');
    var optionArray=[];
    if (fullscreen) { optionArray['full']=1; }
    if (originals) { optionArray['orig']=1; }
    if (slideshowinterval!=0) { optionArray['auto']=slideshowinterval; }
    if (currentimage!=-1) { optionArray['p']=(parseInt(currentimage)+1); }
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    if (optionstr.length>0) { optionstr='?'+optionstr; }
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    el.innerHTML='<a href="'+linkstr+'" title="'+linkstr+'" target="_BLANK">Link to this image and configuration</a>';
    return
}
function getsetupwindow() {
    /* Returns an object containing the long help text */
    var el = document.createElement('div'); 
    el.setAttribute("id", 'setupcontainer');
    var str='<div class="headsmall">Configuration</div> '+
         '<div><input type="submit" id="configFullscreen" value="Fullscreen" onclick="flipfullscreen();" title="Use maximum area for the image. [f]"/>'+
         '<input type="submit" id="configOriginals" value="Originals" onclick="fliporiginals();" title="Use original images, rather than web optimized JPEGs. [o]"/>'+
		 '<input type="submit" id="configZoom" value="Zoom" onclick="flipzoom();" title="Use zoomer on images. [z]"/></div>'+
         '<div><input type="submit" id="configSortName" value="Sort by name" onclick="sortlist(\'alpha\');" title="Sort thumbnail list by image name."/>'+
         '<input type="submit" id="configSortTime" value="Sort by time" onclick="sortlist(\'time\');" title="Sort thumbnail list by image modification time."/>'+
         '<input type="submit" id="configSortRev" value="Reverse sort" onclick="sortlist(\'rev\');" title="Sort thumbnail list in reverse order."/></div>'+
         '<div class="thumbmenu">Slideshow: <input type="text" id="configSlideInterval" size=3 title="Slideshow image change interval. 0 to disable. Use negative number to reverse showing order." onchange="slidesetupfromconfig();"/> seconds</div>'+
         '<div id="configExample" class="thumbmenu"></div>'+
         '<div class="thumbmenu"><input type="submit" value="Close" onclick="usersetupclose();" title="Close the setup window. [s]"/> <a href="http://code.google.com/p/qalbum/wiki/Usage#Using_the_web_browser_UI" target="_BLANK">Help</a></div>';
    el.innerHTML=str;
    return el
}   

function notsupported() {
    // not supported devices (i.e. the javascript doesnt work properly )
    if (uagent.search('series60')>-1) {
        return true;
    }
    if (uagent.search('opera mobi')>-1) {
        return true;
    }
    return false;
}


/*!
 * jQuery JavaScript Library v1.4.2
 * http://jquery.com/
 *
 * Copyright 2010, John Resig
 * Dual licensed under the MIT or GPL Version 2 licenses.
 * http://jquery.org/license
 *
 * Includes Sizzle.js
 * http://sizzlejs.com/
 * Copyright 2010, The Dojo Foundation
 * Released under the MIT, BSD, and GPL Licenses.
 *
 * Date: Sat Feb 13 22:33:48 2010 -0500
 */
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//////////////////////////////////////////////////////////////////////////////////
// Cloud Zoom V1.0.2
// (c) 2010 by R Cecco. <http://www.professorcloud.com>
// MIT License
//
// Please retain this copyright header in all versions of the software
//////////////////////////////////////////////////////////////////////////////////

    function format(str) {
        for (var i = 1; i < arguments.length; i++) {
            str = str.replace('%' + (i - 1), arguments[i]);
        }
        return str;
    }

    function CloudZoom(jWin, opts) {
        var sImg = $('img', jWin);
		var	img1;
		var	img2;
        var zoomDiv = null;
		var	$mouseTrap = null;
		var	lens = null;
		var	$tint = null;
		var	softFocus = null;
		var	$ie6Fix = null;
		var	zoomImage;
        var controlTimer = 0;      
        var cw, ch;
        var destU = 0;
		var	destV = 0;
        var currV = 0;
        var currU = 0;      
        var filesLoaded = 0;
        var mx,
            my; 
        var ctx = this, zw;
        // Display an image loading message. This message gets deleted when the images have loaded and the zoom init function is called.
        // We add a small delay before the message is displayed to avoid the message flicking on then off again virtually immediately if the
        // images load really fast, e.g. from the cache. 
        //var	ctx = this;
        setTimeout(function () {
            //						 <img src="/images/loading.gif"/>
            if ($mouseTrap === null) {
                var w = jWin.width();
                jWin.parent().append(format('<div style="width:%0px;position:absolute;top:75%;left:%1px;text-align:center" class="cloud-zoom-loading" >Loading...</div>', w / 3, (w / 2) - (w / 6))).find(':last').css('opacity', 0.5);
            }
        }, 200);


        var ie6FixRemove = function () {

            if ($ie6Fix !== null) {
                $ie6Fix.remove();
                $ie6Fix = null;
            }
        };

        // Removes cursor, tint layer, blur layer etc.
        this.removeBits = function () {
            //$mouseTrap.unbind();
            if (lens) {
                lens.remove();
                lens = null;             
            }
            if ($tint) {
                $tint.remove();
                $tint = null;
            }
            if (softFocus) {
                softFocus.remove();
                softFocus = null;
            }
            ie6FixRemove();

            $('.cloud-zoom-loading', jWin.parent()).remove();
        };


        this.destroy = function () {
            jWin.data('zoom', null);

            if ($mouseTrap) {
                $mouseTrap.unbind();
                $mouseTrap.remove();
                $mouseTrap = null;
            }
            if (zoomDiv) {
                zoomDiv.remove();
                zoomDiv = null;
            }
            //ie6FixRemove();
            this.removeBits();
            // DON'T FORGET TO REMOVE JQUERY 'DATA' VALUES
        };


        // This is called when the zoom window has faded out so it can be removed.
        this.fadedOut = function () {
            
			if (zoomDiv) {
                zoomDiv.remove();
                zoomDiv = null;
            }
			 this.removeBits();
            //ie6FixRemove();
        };

        this.controlLoop = function () {
            if (lens) {
                var x = (mx - sImg.offset().left - (cw * 0.5)) >> 0;
                var y = (my - sImg.offset().top - (ch * 0.5)) >> 0;
               
                if (x < 0) {
                    x = 0;
                }
                else if (x > (sImg.outerWidth() - cw)) {
                    x = (sImg.outerWidth() - cw);
                }
                if (y < 0) {
                    y = 0;
                }
                else if (y > (sImg.outerHeight() - ch)) {
                    y = (sImg.outerHeight() - ch);
                }

                lens.css({
                    left: x,
                    top: y
                });
                lens.css('background-position', (-x) + 'px ' + (-y) + 'px');

                destU = (((x) / sImg.outerWidth()) * zoomImage.width) >> 0;
                destV = (((y) / sImg.outerHeight()) * zoomImage.height) >> 0;
                currU += (destU - currU) / opts.smoothMove;
                currV += (destV - currV) / opts.smoothMove;

                zoomDiv.css('background-position', (-(currU >> 0) + 'px ') + (-(currV >> 0) + 'px'));              
            }
            controlTimer = setTimeout(function () {
                ctx.controlLoop();
            }, 30);
        };

        this.init2 = function (img, id) {

            filesLoaded++;
            //console.log(img.src + ' ' + id + ' ' + img.width);	
            if (id === 1) {
                zoomImage = img;
            }
            //this.images[id] = img;
            if (filesLoaded === 2) {
                this.init();
            }
        };

        /* Init function start.  */
        this.init = function () {
            // Remove loading message (if present);
            $('.cloud-zoom-loading', jWin.parent()).remove();


/* Add a box (mouseTrap) over the small image to trap mouse events.
		It has priority over zoom window to avoid issues with inner zoom.
		We need the dummy background image as IE does not trap mouse events on
		transparent parts of a div.
		*/
            $mouseTrap = jWin.parent().append(format("<div class='mousetrap' style='background-image:url(\".\");z-index:999;position:absolute;width:%0px;height:%1px;left:%2px;top:%3px;\'></div>", sImg.outerWidth(), sImg.outerHeight(), 0, 0)).find(':last');

            //////////////////////////////////////////////////////////////////////			
            /* Do as little as possible in mousemove event to prevent slowdown. */
            $mouseTrap.bind('mousemove', this, function (event) {
                // Just update the mouse position
                mx = event.pageX;
                my = event.pageY;
            });
            //////////////////////////////////////////////////////////////////////					
            $mouseTrap.bind('mouseleave', this, function (event) {
                clearTimeout(controlTimer);
                //event.data.removeBits();                
				if(lens) { lens.fadeOut(299); }
				if($tint) { $tint.fadeOut(299); }
				if(softFocus) { softFocus.fadeOut(299); }
				zoomDiv.fadeOut(300, function () {
                    ctx.fadedOut();
                });																
                return false;
            });
            //////////////////////////////////////////////////////////////////////			
            $mouseTrap.bind('mouseenter', this, function (event) {
				mx = event.pageX;
                my = event.pageY;
                zw = event.data;
                if (zoomDiv) {
                    zoomDiv.stop(true, false);
                    zoomDiv.remove();
                }

                var xPos = opts.adjustX,
                    yPos = opts.adjustY;
                             
                var siw = sImg.outerWidth();
                var sih = sImg.outerHeight();

                var w = opts.zoomWidth;
                var h = opts.zoomHeight;
                if (opts.zoomWidth == 'auto') {
                    w = siw;
                }
                if (opts.zoomHeight == 'auto') {
                    h = sih;
                }
                //$('#info').text( xPos + ' ' + yPos + ' ' + siw + ' ' + sih );
                var appendTo = jWin.parent(); // attach to the wrapper			
                switch (opts.position) {
                case 'top':
                    yPos -= h; // + opts.adjustY;
                    break;
                case 'right':
                    xPos += siw; // + opts.adjustX;					
                    break;
                case 'bottom':
                    yPos += sih; // + opts.adjustY;
                    break;
                case 'left':
                    xPos -= w; // + opts.adjustX;					
                    break;
                case 'inside':
                    w = siw;
                    h = sih;
                    break;
                    // All other values, try and find an id in the dom to attach to.
                default:
                    appendTo = $('#' + opts.position);
                    // If dom element doesn't exit, just use 'right' position as default.
                    if (!appendTo.length) {
                        appendTo = jWin;
                        xPos += siw; //+ opts.adjustX;
                        yPos += sih; // + opts.adjustY;	
                    } else {
                        w = appendTo.innerWidth();
                        h = appendTo.innerHeight();
                    }
                }

                zoomDiv = appendTo.append(format('<div id="cloud-zoom-big" class="cloud-zoom-big" style="display:none;position:absolute;left:%0px;top:%1px;width:%2px;height:%3px;background-image:url(\'%4\');z-index:99;"></div>', xPos, yPos, w, h, zoomImage.src)).find(':last');

                // Add the title from title tag.
                if (sImg.attr('title') && opts.showTitle) {
                    zoomDiv.append(format('<div class="cloud-zoom-title">%0</div>', sImg.attr('title'))).find(':last').css('opacity', opts.titleOpacity);
                }

                // Fix ie6 select elements wrong z-index bug. Placing an iFrame over the select element solves the issue...		
                if ($.browser.msie && $.browser.version < 7) {
                    $ie6Fix = $('<iframe frameborder="0" src="#"></iframe>').css({
                        position: "absolute",
                        left: xPos,
                        top: yPos,
                        zIndex: 99,
                        width: w,
                        height: h
                    }).insertBefore(zoomDiv);
                }

                zoomDiv.fadeIn(500);

                if (lens) {
                    lens.remove();
                    lens = null;
                } /* Work out size of cursor */
                cw = (sImg.outerWidth() / zoomImage.width) * zoomDiv.width();
                ch = (sImg.outerHeight() / zoomImage.height) * zoomDiv.height();

                // Attach mouse, initially invisible to prevent first frame glitch
                lens = jWin.append(format("<div class = 'cloud-zoom-lens' style='display:none;z-index:98;position:absolute;width:%0px;height:%1px;'></div>", cw, ch)).find(':last');

                $mouseTrap.css('cursor', lens.css('cursor'));

                var noTrans = false;

                // Init tint layer if needed. (Not relevant if using inside mode)			
                if (opts.tint) {
                    lens.css('background', 'url("' + sImg.attr('src') + '")');
                    $tint = jWin.append(format('<div style="display:none;position:absolute; left:0px; top:0px; width:%0px; height:%1px; background-color:%2;" />', sImg.outerWidth(), sImg.outerHeight(), opts.tint)).find(':last');
                    $tint.css('opacity', opts.tintOpacity);                    
					noTrans = true;
					$tint.fadeIn(500);

                }
                if (opts.softFocus) {
                    lens.css('background', 'url("' + sImg.attr('src') + '")');
                    softFocus = jWin.append(format('<div style="position:absolute;display:none;top:2px; left:2px; width:%0px; height:%1px;" />', sImg.outerWidth() - 2, sImg.outerHeight() - 2, opts.tint)).find(':last');
                    softFocus.css('background', 'url("' + sImg.attr('src') + '")');
                    softFocus.css('opacity', 0.5);
                    noTrans = true;
                    softFocus.fadeIn(500);
                }

                if (!noTrans) {
                    lens.css('opacity', opts.lensOpacity);										
                }
				if ( opts.position !== 'inside' ) { lens.fadeIn(500); }

                // Start processing. 
                zw.controlLoop();

                return; // Don't return false here otherwise opera will not detect change of the mouse pointer type.
            });
        };

        img1 = new Image();
        $(img1).load(function () {
            ctx.init2(this, 0);
        });
        img1.src = sImg.attr('src');

        img2 = new Image();
        $(img2).load(function () {
            ctx.init2(this, 1);
        });
        img2.src = jWin.attr('href');
    }

    $.fn.CloudZoom = function (options) {
        // IE6 background image flicker fix
        try {
            document.execCommand("BackgroundImageCache", false, true);
        } catch (e) {}
        this.each(function () {
			var	relOpts, opts;
			// Hmm...eval...slap on wrist.
			eval('var	a = {' + $(this).attr('rel') + '}');
			relOpts = a;
            if ($(this).is('.cloud-zoom')) {
                $(this).css({
                    'position': 'relative',
                    'display': 'block'
                });
                $('img', $(this)).css({
                    'display': 'block'
                });
                // Wrap an outer div around the link so we can attach things without them becoming part of the link.
                // But not if wrap already exists.
                if ($(this).parent().attr('id') != 'wrap') {
                    $(this).wrap('<div id="wrap" style="top:0px;z-index:9999;position:relative;"></div>');
                }
                opts = $.extend({}, $.fn.CloudZoom.defaults, options);
                opts = $.extend({}, opts, relOpts);
                $(this).data('zoom', new CloudZoom($(this), opts));

            } else if ($(this).is('.cloud-zoom-gallery')) {
                opts = $.extend({}, relOpts, options);
                $(this).data('relOpts', opts);
                $(this).bind('click', $(this), function (event) {
                    var data = event.data.data('relOpts');
                    // Destroy the previous zoom
                    $('#' + data.useZoom).data('zoom').destroy();
                    // Change the biglink to point to the new big image.
                    $('#' + data.useZoom).attr('href', event.data.attr('href'));
                    // Change the small image to point to the new small image.
                    $('#' + data.useZoom + ' img').attr('src', event.data.data('relOpts').smallImage);
                    // Init a new zoom with the new images.				
                    $('#' + event.data.data('relOpts').useZoom).CloudZoom();
                    return false;
                });
            }
        });
        return this;
    };

    $.fn.CloudZoom.defaults = {
        zoomWidth: 'auto',
        zoomHeight: 'auto',
        position: 'right',
        tint: false,
        tintOpacity: 0.5,
        lensOpacity: 0.5,
        softFocus: false,
        smoothMove: 3,
        showTitle: true,
        titleOpacity: 0.5,
        adjustX: 0,
        adjustY: 0
    };