var PopupMenu;
PopupMenu.Menus = [];PopupMenu.hideDelay = 300;
function getElementPosition(element)
{
	var offsetTrail = element; var offsetLeft = 0;	var offsetTop = 0;	
	while (offsetTrail)
	{
		offsetLeft += offsetTrail.offsetLeft;
		offsetTop += offsetTrail.offsetTop;
		offsetTrail = offsetTrail.offsetParent;
	}
	if (navigator.userAgent.indexOf("Mac") != -1 && typeof document.body.leftMargin != "undefined")
	{
		offsetLeft += document.body.leftMargin;
		offsetTop += document.body.topMargin;
	}
	return {left:offsetLeft, top:offsetTop};
}
function ShowContextMenu(item, id)
{
	var menu = document.getElementById(id);
	if (menu){
		var position = getElementPosition(item);
		menu.style.top = position.top + 15;
		if (navigator.userAgent.indexOf("MSIE") != -1) menu.style.width = '100%';
		menu.style.display = 'block';  
		menu.style.left = position.left - menu.childNodes[0].clientWidth;
		new PopupMenu(id, true);
		PopupMenu.showMenu(id);
	}
	return false;
}
function PopupMenu(id, autoHide){
	this.id = id;	this.hideTimer = 0;	this.autoHide = autoHide;	this.menu = null;
	PopupMenu.Menus[id] = this;
	this.init = function(){
		this.menu = document.getElementById(this.id);
		if (!this.menu){
			window.setTimeout('PopupMenu.Menus["' + this.id + '"].init()', 100);
			return;
		}
		if (this.autoHide){
			this.menu.onmouseover = new Function('PopupMenu.showMenu("' + this.id + '")');
			this.menu.onmouseout = new Function('PopupMenu.hideMenu("' + this.id + '")');
		}
	}
	this.show = function(){
		if (this.menu) this.menu.style.visibility = 'visible';
	}

	this.hide = function(){
		if (this.menu){
			if (this.hideTimer){
				window.clearTimeout(this.hideTimer);
				this.hideTimer = 0;
			}
			this.menu.style.display = 'none';
			this.menu.style.visibility = 'hidden';
		}
	}
	this.init();
}

PopupMenu.showMenu = function(id){
	var activeMenu = PopupMenu.Menus[id];
	if (activeMenu){
		for (var menu in PopupMenu.Menus){
			if (menu != id) PopupMenu.Menus[menu].hide();
		}
		if (activeMenu.hideTimer){
			window.clearTimeout(activeMenu.hideTimer);
			activeMenu.hideTimer = 0;
		}
		activeMenu.show();
	}
}

PopupMenu.hideMenu = function(id){
	var activeMenu = PopupMenu.Menus[id];
	if (activeMenu){
		if (activeMenu.hideTimer)	window.clearTimeout(activeMenu.hideTimer);
		activeMenu.hideTimer = window.setTimeout('PopupMenu.Menus["' + id + '"].hide()', PopupMenu.hideDelay);
	}
}

PopupMenu.hideAll = function(){
	for (var menu in PopupMenu.Menus)
		PopupMenu.Menus[menu].hide();
}

function MenuItemFocus(item){
	item.className = 'popup-menu-item-hover';
}

function MenuItemBlurr(item){
	item.className = 'popup-menu-item';
}