function leftMenuOver(id){
	var oMenu = document.getElementById(id);
	var m = oMenu.className;
	m+="Over";
	oMenu.className = m;
	//oMenu.className = className+"Over";
	//alert(m);
	//var oMenu = document.getElementById(id);
	//oMenu.style.backgroundColor = '#CC0000';
}
function leftMenuOut(id){
	var oMenu = document.getElementById(id);
	var cn = oMenu.className;
	if(cn.indexOf('Over') != -1){
	    var n = cn.indexOf('Over');
		cn = cn.substring(0,n);
		oMenu.className = cn;
	}else {
	    //do nothing
	}
   //var oMenu = document.getElementById(id);
   //oMenu.style.backgroundColor = '';
}