From 65ba792af88d4aa7aa0baf8e021307a20f808ac6 Mon Sep 17 00:00:00 2001
From: ville rantanen <ville.rantanen@helsinki.fi>
Date: Mon, 2 Jan 2012 16:03:17 +0200
Subject: [PATCH] added preload indicator

---
 galleryscript.js | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/galleryscript.js b/galleryscript.js
index 22d5dc6..8c6e49e 100644
--- a/galleryscript.js
+++ b/galleryscript.js
@@ -26,6 +26,7 @@ var marklist=[]
 var currentimage=-1;
 var currentlist=-1;
 var originals=false;
+var preloader;
 
 function setup() {
     // Setup run at the load of page.
@@ -96,8 +97,22 @@ function preload(i) {
         prestr+='<img src="_med/med_'+encodeURIComponent(imagelist[right])+'.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=0;
+    for (i=0;i<imgs.length;i++) {
+        if (imgs[i].complete) { completed++; }
+    }
+    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 thumblist(n,curr) {
     // creates the short thumbnail list