//

function popup(url, name, width, height, scroll, resize) {

	var scroll = (scroll) ? "yes" : "no";
	var resize = (resize) ? "yes" : "no";

	var	w = width;
	var	h = height;

	var	x = (screen.availWidth - w) / 2;
	var	y = (screen.availHeight - h) / 2;

	if (w==0) w = screen.availWidth-20;
	if (h==0) h = screen.availHeight-20;

	var ref = window.open(url, name, "left=" + x + ", top=" + y + ", width=" + w + ", height=" + h + ", location=no, menubar=no, status=no, toolbar=no, scrollbars=" + scroll + ", resizable=" + resize + "");

	ref.focus();

	if (name) {

		window["popup_" + name] = ref;
	}

	return false;

}