function correctPNG() // correctly handle PNG transparency in Win IE 5.5 & 6.
		{
   			var arVersion = navigator.appVersion.split("MSIE")
   			var version = parseFloat(arVersion[1])
   			if ((version >= 5.5) && (document.body.filters)) 
   			{
			    for(var i=0; i<document.images.length; i++)
			    {
 				    var img = document.images[i]
 				    var imgName = img.src.toUpperCase()
 				    if (imgName.substring(imgName.length-3, imgName.length) == "PNG")
 				    {
    					    var imgID = (img.id) ? "id='" + img.id + "' " : ""
    					    var imgClass = (img.className) ? "class='" + img.className + "' " : ""
    					    var imgTitle = (img.title) ? "title='" + img.title + "' " : "title='" + img.alt + "' "
    					    var imgStyle = "display:inline-block;" + img.style.cssText 
    					    if (img.align == "left") imgStyle = "float:left;" + imgStyle
    					    if (img.align == "right") imgStyle = "float:right;" + imgStyle
    					    if (img.parentElement.href) imgStyle = "cursor:hand;" + imgStyle
    					    var strNewHTML = "<span " + imgID + imgClass + imgTitle
    					    + " style=\"" + "width:" + img.width + "px; height:" + img.height + "px;" + imgStyle + ";"
    					    + "filter:progid:DXImageTransform.Microsoft.AlphaImageLoader"
    					    + "(src=\'" + img.src + "\', sizingMethod='scale');\"></span>" 
    					    img.outerHTML = strNewHTML
    					    i = i-1
 				    }
			    }
   			}    
		}
		window.attachEvent("onload", correctPNG);


		function hidediv(divid) { 
			document.getElementById(divid).style.visibility = 'hidden';
			document.getElementById("bigb").style.visibility = 'visible';
		} 

		function showdiv(divid) { 
			document.getElementById(divid).style.visibility = 'visible';
			document.getElementById("bigb").style.visibility = 'hidden';
		}