function clearbrowseredge(obj, whichedge) {
	var edgeoffset = 0;
	
	if (whichedge == "rightedge") {
		var windowedge = ie4 && !window.opera ? iecompattest().scrollLeft + iecompattest().clientWidth - 15 : window.pageXOffset + window.innerWidth - 15;
		dropmenuobj.contentmeasure = dropmenuobj.offsetWidth;
		
		if (windowedge - dropmenuobj.x < dropmenuobj.contentmeasure) {
			edgeoffset = dropmenuobj.contentmeasure - obj.offsetWidth;
		}
	}
	else {
		var topedge = ie4 && !window.opera ? iecompattest().scrollTop : window.pageYOffset;
		var windowedge = ie4 && !window.opera ? iecompattest().scrollTop + iecompattest().clientHeight - 15 : window.pageYOffset + window.innerHeight - 18;
		dropmenuobj.contentmeasure = dropmenuobj.offsetHeight;
		
		if (windowedge - dropmenuobj.y < dropmenuobj.contentmeasure) {
			edgeoffset = dropmenuobj.contentmeasure + obj.offsetHeight;
			
			if ((dropmenuobj.y - topedge) < dropmenuobj.contentmeasure) {
				edgeoffset = dropmenuobj.y + obj.offsetHeight - topedge;
			}
		}
	}
	
	return edgeoffset;
}

function clearhidemenu() {
	if (typeof(delayhide) != "undefined") {
		clearTimeout(delayhide);
	}
}

function clickreturnvalue() {
	if (ie4 || ns6) {
		return false;
	}
	else {
		return true;
	}
}

function contains_ns6(a, b) {
	while (b.parentNode) {
		if ((b = b.parentNode) == a) {
			return true;
		}
	}
	
	return false;
}

function delayhidemenu() {
	if (ie4 || ns6) {
		delayhide = setTimeout("hidemenu()", disappearDelay);
	}
}

function dropdownmenu(obj, e, menucontents, menuWidth) {
	if (window.event) {
		event.cancelBubble = true;
	}
	else if (e.stopPropagation) {
		e.stopPropagation();
	}
	
	clearhidemenu();
	dropmenuobj = document.getElementById ? document.getElementById("menu-div") : menu-div;
	populatemenu(menucontents);
	
	if (ie4 || ns6) {
		showhide(dropmenuobj.style, e, "visible", "hidden", menuWidth);
		dropmenuobj.x = getposOffset(obj, "left");
		dropmenuobj.y = getposOffset(obj, "top");
		dropmenuobj.style.left = dropmenuobj.x - clearbrowseredge(obj, "rightedge") + "px";
		dropmenuobj.style.top = dropmenuobj.y - clearbrowseredge(obj, "bottomedge") + obj.offsetHeight + "px";
	}
	
	return clickreturnvalue();
}

function dynamichide(e) {
	if (ie4 && !dropmenuobj.contains(e.toElement)) {
		delayhidemenu();
	}
	else if (ns6 && e.currentTarget != e.relatedTarget && !contains_ns6(e.currentTarget, e.relatedTarget)) {
		delayhidemenu();
	}
}

function getposOffset(what, offsettype) {
	var totaloffset = (offsettype == "left") ? what.offsetLeft : what.offsetTop;
	var parentEl = what.offsetParent;
	
	while (parentEl != null) {
		totaloffset = (offsettype == "left") ? totaloffset + parentEl.offsetLeft : totaloffset + parentEl.offsetTop;
		parentEl = parentEl.offsetParent;
	}
	
	return totaloffset;
}

function hidemenu(e) {
	if (typeof dropmenuobj != "undefined") {
		if (ie4 || ns6) {
			dropmenuobj.style.visibility = "hidden";
		}
	}
}

function iecompattest() {
	return (document.compatMode && document.compatMode != "BackCompat") ? document.documentElement : document.body;
}

function populatemenu(what) {
	if (ie4 || ns6) {
		dropmenuobj.innerHTML = what.join("");
	}
}

function showhide(obj, e, visible, hidden, menuWidth) {
	if (ie4 || ns6) {
		dropmenuobj.style.left = dropmenuobj.style.top = -500;
	}
	
	if (menuWidth != "") {
		dropmenuobj.widthobj = dropmenuobj.style;
		dropmenuobj.widthobj.width = menuWidth;
	}
	
	if (e.type == "click" && obj.visibility == hidden || e.type == "mouseover") {
		obj.visibility = visible;
	}
	else if (e.type == "click") {
		obj.visibility = hidden;
	}
}