var hoverClass = "AspNet-Menu-Hover";
var topmostClass = "AspNet-Menu";
var userAgent = navigator.userAgent;
var versionOffset = userAgent.indexOf("MSIE");
var isIE = (versionOffset >= 0);
var isPreIE7 = false;
var fullVersionIE = "";
var majorVersionIE = "";
if (isIE) {
	fullVersionIE = parseFloat(userAgent.substring(versionOffset + 5, userAgent.length));
	majorVersionIE = parseInt('' + fullVersionIE);
	isPreIE7 = majorVersionIE < 7;
}

function Hover__AspNetMenu(element) {
	AddClass__CssFriendlyAdapters(element, hoverClass);

	if (isPreIE7) {
		var child = element.firstChild;
		while (child) {
			if (child.tagName == "UL") {
				var grandchild = child.firstChild;
				while (grandchild) {
					if (grandchild.tagName == "LI") {
						if ((typeof (grandchild.iFrameFormElementMask) != "undefined") && (grandchild.iFrameFormElementMask != null)) {
							grandchild.iFrameFormElementMask.style.display = "block";

							var w = grandchild.offsetWidth;
							if ((grandchild.offsetWidth == 0) && (typeof (element.iFrameFormElementMask) != "undefined") && (element.iFrameFormElementMask != null) && (element.iFrameFormElementMask.style.width.length > 0)) {
								w = element.iFrameFormElementMask.style.width;
							}
							grandchild.iFrameFormElementMask.style.width = w;

							var h = grandchild.offsetHeight + 5 /* fudge to cover margins between menu items */;
							if ((grandchild.offsetHeight == 0) && (typeof (element.iFrameFormElementMask) != "undefined") && (element.iFrameFormElementMask != null) && (element.iFrameFormElementMask.style.height.length > 0)) {
								h = element.iFrameFormElementMask.style.height;
							}
							grandchild.iFrameFormElementMask.style.height = h;
						}
					}

					grandchild = grandchild.nextSibling;
				}
			}

			child = child.nextSibling;
		}
	}
}

function Unhover__AspNetMenu(element) {
	RemoveClass__CssFriendlyAdapters(element, hoverClass);

	if (isPreIE7) {
		var child = element.firstChild;
		while (child) {
			if (child.tagName == "UL") {
				var grandchild = child.firstChild;
				while (grandchild) {
					if (grandchild.tagName == "LI") {
						if ((typeof (grandchild.iFrameFormElementMask) != "undefined") && (grandchild.iFrameFormElementMask != null)) {
							grandchild.iFrameFormElementMask.style.display = "none";
						}
					}

					grandchild = grandchild.nextSibling;
				}
			}

			child = child.nextSibling;
		}
	}
}

function SetHover__AspNetMenu() {
	var menus = document.getElementsByTagName("ul");
	for (var i = 0; i < menus.length; i++) {
		if (menus[i].className == topmostClass) {
			var items = menus[i].getElementsByTagName("li");
			for (var k = 0; k < items.length; k++) {
				items[k].onmouseover = function() { Hover__AspNetMenu(this); }
				items[k].onmouseout = function() { Unhover__AspNetMenu(this); }

				if (isPreIE7 && ((typeof (items[k].iFrameFormElementMask) == "undefined") || (items[k].iFrameFormElementMask == null))) {
					var iFrameFormElementMask = document.createElement("IFRAME");
					iFrameFormElementMask.scrolling = "no";
					iFrameFormElementMask.src = "javascript:false;";
					iFrameFormElementMask.frameBorder = 0;
					iFrameFormElementMask.style.display = "none";
					iFrameFormElementMask.style.position = "absolute";
					iFrameFormElementMask.style.filter = "progid:DXImageTransform.Microsoft.Alpha(style=0,opacity=0)";

					iFrameFormElementMask.style.zIndex = -1;
					items[k].insertBefore(iFrameFormElementMask, items[k].firstChild);
					items[k].iFrameFormElementMask = iFrameFormElementMask;
				}
			}
		}
	}
}

if (isPreIE7) {
	window.onload = SetHover__AspNetMenu;
}