function map() {

	var width = 550;

	var height = 425;

	var x = getCenterX(width);

	var y = 100;

	popupWin = window.open('map.html', 'map',"toolbar=no,location=no,status=no,menubar=no,scrollbars=no,resizable=no,width=" + width + ",height=" + height + ",screenY=" + y + ",screenX=" + x + ",top=" + y + ",left=" + x);

	popupWin.focus();

}





function getCenterX(width) {

	x = (640 - width)/2;

	if (screen) {

        x = (screen.availWidth - width)/2;

    }

    return x;

}