function bgchange(td)
{
	var oclass = td.getAttribute("class");
	if(oclass=="menuBG")
		td.setAttribute("class","menuBGA");
	else if(oclass=="menuBGsub")
		td.setAttribute("class","menuBGAsub");
}
function bgchangeOut(td)
{
	var oclass = td.getAttribute("class");
	if(oclass=="menuBGAsub")
		td.setAttribute("class","menuBGsub");
	else if(oclass=="menuBGA")
		td.setAttribute("class","menuBG");
}
function showsubmenu(obj)
{
	if (navigator.appName.indexOf("Microsoft")!=-1) 
  		var winW = document.body.offsetWidth;
	else
		var winW = window.innerWidth;
	tblwidth = 723;

	if(obj=='events')
	{
		document.getElementById('submenuevents').style.left = ((winW - tblwidth)/2) + 342;
		document.getElementById('submenuevents').style.display = '';
	}
	else if(obj=='res')
	{
		document.getElementById('submenures').style.left = ((winW - tblwidth)/2) + 467;
		document.getElementById('submenures').style.display = '';
		
	}
}