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;
		}

function ChNodeBg(id, node_src)
	{
	if(node_id=document.getElementById(id))
		{node_id.style.background="url("+node_src+")";
		}
	}


function chNodeBg(id, node_src)
	{
	if(node_id=document.getElementById(id))
		{node_id.style.background="url("+node_src+")";
		}
	}

function chNodeBgcolor(id, color)
	{
	if(node_id=document.getElementById(id))
		{node_id.style.background=color;
		}
	}



function ChNodeSrc(id, nodeSrc)
	{
	if(node=getNode(id))
		{node.src=nodeSrc;}
	}

function chNodeSrc(id, nodeSrc)
	{
	if(node=getNode(id))
		{node.src=nodeSrc;}
	}

function chNodeHref(id, nodeSrc)
	{
	if(node=getNode(id))
		{node.href=nodeSrc;}
	}

function chNodeHeight(id, nodeHeight)
	{
	if(node=getNode(id))
		{node.height=nodeHeight;}
	}

function chNodeDisplay(id)
	{
	if(node=getNode(id))
		{
		if(node.style.display=="block")
			{node.style.display="none";}
		else
			{node.style.display="block";}
		}
	}
function showHideNode(id)
	{
	if(node_id=getNode(id))
		{
		if(node_id.style.display=="block")
			{node_id.style.display="none";}
		else
			{node_id.style.display="block";}
		}
	}



function addEvent( obj, type, fn )
	{
	if (obj.addEventListener) {
		obj.addEventListener( type, fn, false );
		EventCache.add(obj, type, fn);
	}
	else if (obj.attachEvent) {
		obj["e"+type+fn] = fn;
		obj[type+fn] = function() { obj["e"+type+fn]( window.event ); }
		obj.attachEvent( "on"+type, obj[type+fn] );
		EventCache.add(obj, type, fn);
	}
	else {
		obj["on"+type] = obj["e"+type+fn];
	}
}

var EventCache = function(){
	var listEvents = [];
	return {
		listEvents : listEvents,
		add : function(node, sEventName, fHandler){
			listEvents.push(arguments);
		},
		flush : function(){
			var i, item;
			for(i = listEvents.length - 1; i >= 0; i = i - 1){
				item = listEvents[i];
				if(item[0].removeEventListener){
					item[0].removeEventListener(item[1], item[2], item[3]);
				};
				if(item[1].substring(0, 2) != "on"){
					item[1] = "on" + item[1];
				};
				if(item[0].detachEvent){
					item[0].detachEvent(item[1], item[2]);
				};
				item[0][item[1]] = null;
			};
		}
	};
}();
addEvent(window,'unload',EventCache.flush);
























function showMenu(nodeId)
	{
	chNodeSrc(defoultMenu,	url_img+"spacer.gif");
	chNodeSrc(nodeId,	url_img+"next_2007/menu_pointer.gif");
	}


function hideMenu(nodeId)
	{
	chNodeSrc(nodeId,	url_img+"spacer.gif");
	chNodeSrc(defoultMenu,	url_img+"next_2007/menu_pointer.gif");
	}