function formValidator(){
	// Define variables and link to Form via Id
	var name = document.getElementById('name');
    var email = document.getElementById('email');
		
	// Check each field in the form
	if(isEmpty(name, "Please enter your full name")){
    if(emailValidator(email, "Please enter a valid email address")){
		return true;
    }
}
	
	return false;
	
}
    
    
//Length of field is greater than 0
function isEmpty(elem, helperMsg){
	if(elem.value.length == 0){
		alert(helperMsg);
		elem.focus(); // set the focus to this input
		return false;
	}
	return true;
}
//Numeric values only
function isNumeric(elem, helperMsg){
	var numericExpression = /^[0-9]+$/;
	if(elem.value.match(numericExpression)){
		return true;
	}else{
		alert(helperMsg);
		elem.focus();
		return false;
	}
}
//Alpha only
function isAlphabet(elem, helperMsg){
	var alphaExp = /^[a-zA-Z]+$/;
	if(elem.value.match(alphaExp)){
		return true;
	}else{
		alert(helperMsg);
		elem.focus();
		return false;
	}
}
//AlphaNumeric only
function isAlphanumeric(elem, helperMsg){
	var alphaExp = /^[0-9a-zA-Z]+$/;
	if(elem.value.match(alphaExp)){
		return true;
	}else{
		alert(helperMsg);
		elem.focus();
		return false;
	}
}
//Checks that field length is within min and max values passed in
function lengthRestriction(elem, min, max, helperMsg){
	var uInput = elem.value;
	if(uInput.length >= min && uInput.length <= max){
		return true;
	}else{
		alert(helperMsg);
		//alert("Please enter between " +min+ " and " +max+ " characters");
		elem.focus();
		return false;
	}
}
//For use with dropdowns (select tag) ensures a selection has been made
function madeSelection(elem, helperMsg){
	if(elem.value == "Please Choose"){
		alert(helperMsg);
		elem.focus();
		return false;
	}else{
		return true;
	}
}
//validates email format against regular expression
function emailValidator(elem, helperMsg){
	var emailExp = /^[\w\-\.\+]+\@[a-zA-Z0-9\.\-]+\.[a-zA-z0-9]{2,4}$/;
	if(elem.value.match(emailExp)){
		return true;
	}else{
		alert(helperMsg);
		elem.focus();
		return false;
	}
}