function clearText(theControl) {
	if (theControl.value == 'CITY or ZIP CODE'){
		theControl.value = '';
	}
}

function validateSearchForm(theForm){
	if (theForm.search_text.value == 'CITY or ZIP CODE' || theForm.search_text.value == ''){
		alert('Please enter a city or zip code.');
		return false;
	} else {
		return true;
	}
}