function changeOpac(opacity, id) 
{ 
    var object = document.getElementById(id).style; 
    object.opacity = (opacity / 100); 
    object.MozOpacity = (opacity / 100); 
    object.KhtmlOpacity = (opacity / 100); 
    object.filter = "alpha(opacity=" + opacity + ")"; 
} 

function blendimage(divid, imageid, imagefile, millisec) 
{ 
    var speed = Math.round(millisec / 10); 
    var timer = 0; 

    //set the current image as background 
    document.getElementById(divid).style.backgroundImage = "url(" + document.getElementById(imageid).src + ")"; 

    //make image transparent 
    changeOpac(0, imageid); 

    //make new image 
    document.getElementById(imageid).src = imagefile; 

    //fade in image 
    for(i = 0; i <= 100; i++) 
    { 
        setTimeout("changeOpac(" + i + ",'" + imageid + "')",(timer * speed)); 
        timer++; 
    } 
} 

var slideCache = new Array(); 
function RunSlideShow(divid,imageid,imageFiles,displaySecs) 
{ 
    var imageSeparator = imageFiles.indexOf(";"); 
    var nextImage = imageFiles.substring(0,imageSeparator); 

    changeOpac(0, imageid); 
    blendimage(divid,imageid,nextImage,200); 

    var futureImages= imageFiles.substring(imageSeparator+1,imageFiles.length)+ ';' + nextImage; 
    setTimeout("RunSlideShow('"+divid+"','"+imageid+"','"+futureImages+"',"+displaySecs+")",displaySecs*1000); 

    // Cache the next image to improve performance. 
    imageSeparator = futureImages.indexOf(";"); 
    nextImage = futureImages.substring(0,imageSeparator); 
    if (slideCache[nextImage] == null) 
    { 
        slideCache[nextImage] = new Image; 
        slideCache[nextImage].src = nextImage; 
    } 
}