var tray, trayFx;

window.addEvent('domready', function(){
	if (false && Browser.Engine.trident4){
		// hack to get IE6 to display properly and also stop tray from appearing
		var el=$('navside');
		if(!el) return;
		el.setStyle('display','none');
		el.setStyle('display','block');
		return;
	}
	tray = $('sitemap-tray');
	if(!tray) return;
	tray.setStyle('overflow','hidden');
	tray.setStyle('display','block');
	tray.set('offset',tray.offsetHeight);
	tray.setStyle('marginTop',-tray.offsetHeight);
	tray.setStyle('display','none');
	tray.open=false;
	new Element('img', {src: '/common/images/icon_head_plus.gif','rel':'plus','height':'10','width':'10','id':'tray_control_img','align':'absmiddle'}).inject($('tray_control'));

	trayFx = new Fx.Tween(tray, {
		property: 'marginTop',
		duration: 500,
		wait: false
	});

});
function toggle_tray(){
	if(!trayFx) return;
	if(tray.open)
		trayFx.start(-tray.offsetHeight).chain(function(){ 
				tray.setStyle('display','none'); $('tray_control_img').set('src','/common/images/icon_head_plus.gif'); });
	else{
		tray.setStyle('display','block');
		trayFx.start(0).chain(function(){ $('tray_control_img').set('src','/common/images/icon_head_minus.gif'); });
	}
	tray.open = !tray.open
}
var preload = new Image(); preload.src='/common/images/icon_head_minus.gif';