function getObj_frontendsite(obj){
	if (document.getElementById)
		return document.getElementById(obj)
	else if (document.all)
		return document.all[obj]
} 
function ChangeMenu()
{
	oldmenu = new getObj_frontendsite('main_menu');
	oldmenu.style.display = 'none';
	newmenu = new getObj_frontendsite('new_menu');
	newmenu.style.display = '';
}
setTimeout('ChangeMenu()',0);