function setupButtons() 
{ 
    var d=document; 
    if (d.images) 
    { 
        if (!d.imagePreloadArray) d.imagePreloadArray = new Array(); 
        var preloadIndex = 0; 
        var numImages = d.images.length; 
        for (i=0; i < numImages; i++) 
        { 
            var anImage = d.images[i]; 
            if (anImage.getAttribute("isButton") == "1") 
            { 
                // setup image paths, size, and mouseover effects 
                anImage.overSrc = getOverSrc(anImage); 
                anImage.outSrc = anImage.src; 
                anImage.width=140; 
                anImage.height=24; 
                anImage.border=0;
                anImage.onmouseover = new Function("this.src = this.overSrc;"); 
                anImage.onmouseout = new Function("this.src = this.outSrc;"); 

                // preload the mouseover image 
                d.imagePreloadArray[preloadIndex] = new Image; 
                d.imagePreloadArray[preloadIndex].src = anImage.overSrc; 
            }
        } 
    } 
} 
        

function getOverSrc(obj) 
{ 
    var splitPoint = obj.src.lastIndexOf("."); 
    var newSrc = obj.src.substring(0, splitPoint) + "2" + obj.src.substring(splitPoint); 
    return newSrc; 
}