/*
*/

function openWindow (url_string, WW, HH)
{
	var hh = HH;
	var ww = WW;
	var url = url_string;
	var params = "height=" + hh + ", width=" + ww + ", left=" + ((screen.width - ww) / 2) + ", top=" + ((screen.height - hh) / 2) + ", toolbar=no, location=no, directories=no, status=no, menubar=no, scrollbars=yes, resizable=yes, copyhistory=yes";
	var win_2 = window.open (url, "enlace", params);
}