function popwin(FILE,WIDTH,HEIGHT,WINDOW_NAME) {
var screenWidth = screen.width;
	var left = (screenWidth - WIDTH) / 2;
	var window_name = WINDOW_NAME;
        window.name = "main";
	if (! window_name) window_name = "info";
	window_name = "citypass_" + window_name;
	var newWin = window.open(FILE,window_name,"width="+WIDTH+",height="+HEIGHT+",menubar=0,resizable=1,scrollbars=1,status=0,titlebar=0,toolbar=0,left="+left+",screenX="+left+",top=50");
	if (newWin) newWin.focus();	
}

function popcart(FILE,WIDTH,HEIGHT) {
	window.open(FILE,"","width="+WIDTH+",height="+HEIGHT+",menubar=0,resizable=1,scrollbars=1, status=0,titlebar=0,toolbar=0,left=125,top=100");
	window.name="main";
}