function isEmpty(strValue) {
  if (strValue) {
  	if((strValue == '') || (strValue.length < 0)) {
  		//return msg;
  		return false;
  	} else {
  		//return msg;
  		return true;
  	}
	} else {
    return false;
  }
}

function isNum(num) {
	if((isNaN(num)) || (num.length != 5)) {
		return false;
	} else {
		return true;
	}
}

function CheckEmail(src) {
	var regex = /^[a-zA-Z0-9._-]+@([a-zA-Z0-9.-]+\.)+[a-zA-Z0-9.-]{2,4}$/;
	return regex.test(src);
}

function hideDiv (divID) {
	$(divID).hide();
}

function showDiv(divID) {
	$(divID).show();
}

function formSubmit() {

  var jfid =  $('#jfid').val();
	var message  = "";
	var industry = "";
	var fname    = $('#first-name').val();
	var lname    = $('#last-name').val();
	
	if (!isEmpty(fname)) { message = "You must enter a first name."; }
	if (!isEmpty(lname)) { message = message + "\n" + "You must enter a last name."; }
	
	//Get industry list
	var ob = document.getElementById('industry');
	if (!isEmpty($("#industry").val())) {
		message = message + "\n" + "You must select at least one industry.";
	}
	for (i = 0; i < ob.options.length; i++) {
		if (ob.options[i].selected) {
			industry = industry + "," + ob.options[i].value;
		}
	}
	/*
  if((!isEmpty($("#alertZip").val())) || (!isEmpty($("#email_address").val()))) {
		message = message + "\n" + "You must enter a value in all fields.";
	}
	*/
	if(!CheckEmail($("#email_address").val())) {
		message = message + "\n" + "The email address must be entered in the correct format:johndoe@you.com";
	}
	if(!isNum($("#alertZip").val())) {
		message = message + "\n" + "The zipcode must be a 5 digit number in order to be processed.";
	}
	/*
  $("input[@type='checkbox']").each(function() {
		if (this.checked != true) {
			message = message + "\n" + "You must agree to the Terms and Conditions to continue.";
		}
	});
	*/
  if ($('#info').attr('checked')) {
    var opt_in = 1;
  } else {
    var opt_in = 0;
  }
  if(message != "") {
		alert(message);
		return false;
	}
	
  var gender =  $('#gender').val();
  if (gender == 'select') {
    var gender = "na";
  }
  var age =  $('#age').val();
   if (age == 'select') {
    var age = "na";
  }
	
	//Prepare data to submitted using jquery:ajax
	var dataString = "jfid=" + jfid + "&fname=" + fname + "&lname=" + lname + "&email=" + $("#email_address").val() + "&zip=" + $("#alertZip").val() + "&ind=" + industry + "&opt_in=" + opt_in + "&gender=" + gender + "&age=" + age;
	//alert (dataString);
  var message = $.ajax({
	   type: "POST",
	   url: "/jobfair_prereg.cfm",
	   data: dataString,
 	   async: false 
	}).responseText;
	if (parseInt(message) != 0){
	 	$('#jobAlert').html(message);
		$('#jobAlert').fadeIn('slow');
  }
  if(message.search("Thank you") != -1){
	linkJFreg(this);
  }
}