// Pop up window

var popup = null;

function open_popup(url, type, height, width) {
	var options = "";
	if (popup != null && !popup.closed) {
		popup.close();
	}
	if (type == "plain") {
		options = "status,height=" + height + ",width=" + width;
	}
	if (type == "flexible") {
		options = "resizable,height=" + height + ",width=" + width;
	}
	if (type == "full") {
		options = "toolbar,menubar,scrollbars," + "resizable,location,height=" + height + ",width=" + width;
	}
	if (type == "inplace") {
		options = "scrollbars," + "resizable,width=" + width;
	}
	popup = window.open(url, 'popup', options);
	popup.focus();
}