function compareselects(s1,s2) {
	s1 = document.getElementById(s1);
	s2 = document.getElementById(s2);
	opt1 = s1.options[s1.selectedIndex].value;
	opt2 = s2.options[s2.selectedIndex].value;
	if (opt1.length > 0 && opt2.length > 0 && opt1 == opt2) {
		s2.options[0].selected = 'selected';
		s2.focus();
		alert("Your first and second selections must be different.  Please choose a different second selection, in case your first is not available.");
	}
}