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script for loading bar/graphic on slow page (persits images loading)

Posted on 2007-11-28
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Last Modified: 2012-08-13
Hi

I am developing an online store that on the product list page loads up using persits small thumbnails of images. It's fast in some browsers and sluggish in oteres.

I'd like to have a small loading graphic which will loop until all the images are loaded. Is this possible?

Pages are asp vb

Thanks

Dave
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Question by:swordfishsoup
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3 Comments
 
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B_Dorsey earned 500 total points
ID: 20367134
basically  I would just flaot a image at the center of the page with some loading bars, then use the body onload event to remove it.
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LVL 63

Expert Comment

by:Zvonko
ID: 20368559
Check this method:
<img src="first.gif" onLoad="this.onload=null;this.src='product1.gif';" >
<img src="first.gif" onLoad="this.onload=null;this.src='product2.gif';" >
<img src="first.gif" onLoad="this.onload=null;this.src='product3.gif';" >

Open in new window

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LVL 8

Expert Comment

by:deadite
ID: 20372048
Try preloading your images like so:
I don't know if this is ASP or not, but here is a javascript.  Google "Preload Images" and you'll find a ton of methods to do this.  You can basically put that in an onload and display an image there...

    <SCRIPT language="JavaScript">
    <!--

    if (document.images)
    {
      preload_image_object = new Image();
      // set image url
      image_url = new Array();
      image_url[0] = "http://mydomain.com/image0.gif";
      image_url[1] = "http://mydomain.com/image1.gif";
      image_url[2] = "http://mydomain.com/image2.gif";
      image_url[3] = "http://mydomain.com/image3.gif";

       var i = 0;
       for(i=0; i<=3; i++)
         preload_image_object.src = image_url[i];
    }

    //-->
    </SCRIPT>  
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