var popID;
var tID;
var HIDE_MENU_TIMEOUT = 100;
var SHOW_MENU_TIMEOUT = 0;
function MenuP ( node ) {
	this.node = node;
	this.menuItems = new Array();
	MenuP.prototype.add = function( menuItem ) {
		this.menuItems[ this.menuItems.length ] = menuItem;	
	}
	MenuP.prototype.create = function( ) {
		var dNode = document.createElement( "div" );
		dNode.className = "dropdownmenu";
		var str = "_" + this.node.id;
		dNode.setAttribute( "id", str );
		//var w = this.node.offsetWidth;
		//dNode.style.width = w > 220 ? w+"px" : "220px";
		dNode.style.top = ( this.node.offsetTop + this.node.offsetHeight ) + "px";
		dNode.style.left = this.node.offsetLeft + "px";
		addEvent( this.node, "mouseover", function() { showMenu(str) } );
		addEvent( this.node, "mouseout", function() { setInMenu(false) } );
		dNode.setAttribute( "pItemID", this.node.id );
		addEvent( dNode, "mouseover", function() { setInMenu(true) } );
		addEvent( dNode, "mouseout", function() { setInMenu(false) } );
		var html = "<ul>";
		for( var i=0; i<this.menuItems.length; i++ ) {
			html += this.menuItems[i].getLinkHTML();
		}
		body.appendChild( dNode );
		dNode.innerHTML = html + "</ul>";
	}
}
function Menu( value, desc, href ) {
	this.value = ( value == null ) ? "" : value;
	this.href = ( href == null ) ? "" : href;
	this.desc = (desc == null) ? "" : desc;
	this.getLinkHTML = function () {
		if( this.value != "" && this.href != "" )
			return "<li><a onclick=\"setInMenu(false); hideMenu(); return true;\" title=\"" + this.desc + "\" href=\"" + this.href + "\">" + this.value + "</a></li>";
		else if( this.value != "" && this.href == "" )
			return "<li class='heading'>" + this.value + "</li>";
		else
			return "<li class='separator'>&nbsp;</li>";
	}
}
function showMenuInTime( node, time ) {
	popID = setTimeout( "showMenu('" + node + "')", time );
}
function showMenu( node ) {
	clearTimeout( popID );
	if( typeof node == "string" )
		node = getNode( node );
	if( last != null && last != node )
		hideMenu( last );
	else if( last == node ) {
		setInMenu( true );
		return;
	}
	var pItem = getNode( node.getAttribute( "pItemID" ) );
	var menuLeft = 0;
	var menuTop = pItem.offsetHeight;
	var tmp = pItem;
	while(tmp!=null && tmp.tagName!="BODY") {
		if( tmp.tagName == "html:body" ) break;
		menuLeft += tmp.offsetLeft;
		menuTop  += tmp.offsetTop;
		tmp = tmp.offsetParent;
	}
	var w = pItem.offsetWidth;
	node.style.width = w > 160 ? w+"px" : "160px";
	node.style.left = (pItem.id=="mobile"?menuLeft-60:menuLeft) + "px";
	node.style.top = menuTop + "px";

	node.style.display = "block";	
	setInMenu( true );
	last = node;
	tID = setTimeout( "hideMenu( last )", HIDE_MENU_TIMEOUT );
}
function hideMenu( node ) {
	if( node == null ) {
		setInMenu( false );
		hideMenu( last );
		return;
	}
	if( typeof node == "string" )
		node = getNode( node );
	if( !inMenu ) {
		node.style.display = "none";
		var pItem = getNode( node.getAttribute( "pItemID" ) );
		last = null;
		clearTimeout( tID );
	} else
		tID = setTimeout( "hideMenu( last )", HIDE_MENU_TIMEOUT );	
}
function setInMenu( value ) {
	inMenu = value;	
	if( !value ) clearTimeout( popID );
}
function addEvent( node, evtType, func ) {
	if( node.addEventListener ) {
		node.addEventListener( evtType, func, false );
		return true;
	} else if( node.attachEvent )
		return node.attachEvent( "on" + evtType, func );
	else
		return false;
}
function getNode( nodeId ) {
	if( document.getElementById )
		return document.getElementById( nodeId );
	else if( document.all && document.all( nodeId ) )
		return document.all( nodeId );
	else if( document.layers && document.layers[ nodeId ] )
		return document.layers[ nodeId ];
	else
		return false;
}