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 + "\');\"></span>" 
				            img.outerHTML = strNewHTML
				            i = i-1
			         }
		      }
	   } 
}


function opacity(id, opacStart, opacEnd, millisec) 
{
    var speed = Math.round(millisec / 100);
    var timer = 0;

    if(opacStart > opacEnd) 
	{
        for(i = opacStart; i >= opacEnd; i--) 
		{
            setTimeout("changeOpac(" + i + ",'" + id + "')",(timer * speed));
            timer++;
        }
    } 
	else if(opacStart < opacEnd) 
	{
        for(i = opacStart; i <= opacEnd; i++)
        {
            setTimeout("changeOpac(" + i + ",'" + id + "')",(timer * speed));
            timer++;
        }
    }
}

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 + ")";
}