function openwindow(){
  window.open ("","Help","toolbar=no,location=no,directories=no,status=no,scrollbars=yes,resizable=no,copyhistory=no,width=600,height=400");
}
function openWithSelfMain(url,name,width,height) {
	var options = "width=" + width + ",height=" + height + "toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=yes,resizable=no,copyhistory=no";

	new_window = window.open(url, name, options);
	window.self.name = "main";
	new_window.focus();
}