function inMenu(ele, id) {
	var td_ele = document.getElementById(id) ;
	if ( id != null ) {
		td_ele.style.background = 'url( "' + selectedMenu.bg + '" )'; 
		ele.style.color = selectedMenu.color ; 
	}
}

function outMenu(ele, id) {
	var td_ele = document.getElementById(id) ;
	if ( id != null ) {
		td_ele.style.background = 'url( "' + unselectedMenu.bg + '" )'; 
		ele.style.color = unselectedMenu.color ; 
	}
}