function validator()
{
	var first = document.form.connect_from.options[document.form.connect_from.selectedIndex].value;
	var second = document.form.connect_to.options[document.form.connect_to.selectedIndex].value;

	if ( first == "none" ||  second == "none")
	{
		alert("Please choose a name in both pull-down menus,\r then click on the 'Go' button");
		return false;
	}
	else
	{
		return true;
	}
}