function noEntry() {
	var numericExpression = /^[0-9]+$/;
	var areacode = $('#areacode').val();
	var prefix = $('#prefix').val();
	var linenumber = $('#linenumber').val();
	var zip = $('#zip').val();

	if ($('#custname').val() == ""){
		alert("Please include your name.");
		$('#custname').focus();
		return false;	
	}
	if ($('#add1').val() == ""){
		alert("Please include your address.");
		$('#add1').focus();
		return false;	
	}
	if ($('#city').val() == ""){
		alert("Please include your city.");
		$('#city').focus();
		return false;
	} 
	if ((zip == "") || (zip.length != 5) || (!zip.match(numericExpression))){
		alert("Please include your zip code.");
		$('#zip').focus();
		return false;	
	}
	if ((areacode == "") || (areacode.length != 3) || (!areacode.match(numericExpression)) || (prefix == "") || (prefix.length != 3) || (!prefix.match(numericExpression)) || (linenumber == "") || (linenumber.length != 4) || (!linenumber.match(numericExpression))){
		alert("Please include your phone number.");
		$('#areacode').focus();
		return false;	
	}
	  
}