function chahgeMenuBg(id){
	var Id = document.getElementById(id);
	if(Id != null){
		Id.style.background = 'url("public/images/menu-item-gradient.jpg") repeat-x left top';
	} 
}
function RestoreMenuBg(id){
	var Id = document.getElementById(id);
	if(Id != null){
		Id.style.background = 'none';		
	}
}