var w_window = null;
function newWindow(w_url,w_height,w_width) {
	var url = w_url;
    var name = "window";
    var features ="toolbar=0,location=0,directories=0,status=0,menubar=0,scrollbars=1,copyhistory=0,resizable=1,width="+w_width+",height="+w_height
    if (!w_window || w_window.closed ) {
      w_window = window.open(url,name,features);
    }
    w_window.focus();
} // end function