// Thanks to http://homepage.ntlworld.com/bobosola/index.htm for providing the PNG transparency solution
function correctPNG() { // correctly handle PNG transparency in Win IE 5.5 or higher.
	if (navigator.userAgent.indexOf("MSIE") == -1) return;
	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 
			var imgMouseOver = (img.onmouseover) ? "onMouseOver=\""+img.onmouseover+"\" " : "";
			var imgMouseOut = (img.onmouseout) ? "onMouseOut=\""+img.onmouseout+"\" " : "";
			var imgMouseDown = (img.onmousedown) ? "onMouseDown=\""+img.onmousedown+"\" " : "";
			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
		}
	}
}

if(navigator.userAgent.indexOf("MSIE") > -1) {
	window.attachEvent("onload", correctPNG);
}
// end correctPNG() fun

function toggle (checkbox) {
	var id = checkbox.name;
	var ul = document.getElementById(id + "_ul");
	
	if (!ul) return; // don't want to make errors
	
	var lis = ul.childNodes;
	
	for (var l = 0; l < lis.length; l++) {
		if (lis[l].nodeName == "LI") {
			var input = lis[l].childNodes;
			for (var i = 0; i < input.length; i++) {
				if (input[i].nodeName == "INPUT") {
					input[i].checked = checkbox.checked;
				}
			}
		}
	}
}