function trySubmit(){
	return checkCityAndState();
}

function checkCityAndState(){
	if(document.forms[1].city.value == "" && document.forms[1].state.selectedIndex == 0 && document.forms[1].zip.value == ""){
		alert("Please enter a City & State or Zip Code.");
		return false;
	}
	if(document.forms[1].city.value != ""){
		if(document.forms[1].state.selectedIndex == 0 && document.forms[1].zip.value == "" ){
			alert("Please enter both a City & State, \nor search by Zip Code.");
			return false;
		} else {
			return true;
		}
	}
}