var mvflag = 0;
var loadflag = false;

function bg() {
	loadflag = true;
}
function onm(obj) {
	if (loadflag) {
		id_new = 'bgimg' + obj;
		id_pre = 'bgimg' + mvflag;
		document.getElementById(id_new).style.zIndex = 9;
		document.getElementById(id_pre).style.zIndex = 2;
		mvflag = obj;
	}
}
function offm(obj) {
	if (loadflag) {
		currentOpaNum1 = 10;
		id_new = 'bgimg0';
		id_pre = 'bgimg' + mvflag;
		document.getElementById(id_new).style.zIndex = 9;
		document.getElementById(id_pre).style.zIndex = 2;
		mvflag = 0;
	}
}