function popup() {
	w = 740;
	h = 400;
	x = (screen.width - w) / 2;
	y = (screen.height - h) / 2;
	
if(navigator.appName== "Microsoft Internet Explorer"){ 
			
			w=w+16;
			window.open("/mobahoto.html","mobahoto","screenX="+x+",screenY="+y+",left="+x+",top="+y+",width="+w+",height="+h+",scrollbars=yes");
		}
		
else{
	
			window.open("/mobahoto.html","mobahoto","screenX="+x+",screenY="+y+",left="+x+",top="+y+",width="+w+",height="+h+",scrollbars=yes");
	
	}
	
}