addEvent( window, 'load', loadTopMenu );

var popID;
var tID;
var flash;

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 = "jsMenu";
		var str = "_" + this.node.id;
		dNode.setAttribute( "id", str );
		var w = this.node.offsetWidth;
		dNode.style.width = w > 100 ? w+"px" : "100px";
		dNode.style.top = ( this.node.offsetTop + this.node.offsetHeight ) + "px";
		dNode.style.left = this.node.offsetLeft + "px";
		addEvent( this.node, "mouseover", function() { showMenuInTime(str, 100) } );
		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, href ) 
{
	this.value = ( value == null ) ? "" : value;
	this.href = ( href == null ) ? "" : href;
	if( this.href != "" && typeof useAbsPath != "undefined" )
		if( useAbsPath && this.href.indexOf( "http://" ) == -1 && this.href.indexOf( "https://" ) == -1 )
			this.href = "http://www.opera.com" + this.href;
	Menu.prototype.getLinkHTML = function () 
	{
		if( this.value != "" && this.href != "" )
			return "<li><a target=\"_top\" onclick=\"setInMenu(false); hideMenu(); return true;\" 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;
	}
	node.style.left = menuLeft + "px";
	node.style.top = 126 + "px";
	var w = pItem.offsetWidth;
	node.style.width = w > 100 ? w+"px" : "100px";
	node.style.display = "block";	
	setInMenu( true );
	last = node;
	if( flash != null )	flash.style.visibility = "hidden";
	tID = setTimeout( "hideMenu( last )", 500 );
}

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 );
		if( flash != null )	flash.style.visibility = "visible";
	} else
		tID = setTimeout( "hideMenu( last )", 500 );	
}

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;
}