/*validator*/
  function formValidator(){
		// Make quick references to our fields
		var name = document.getElementById('name');
		var email = document.getElementById('email');
		var comment = document.getElementById('comment');
		// Check each input in the order that it appears in the form!
		if(notEmpty(name, "Your name is a required field")){
	    	if(emailValidator(email, "email address space is either empty or not valid")){
				if(notEmpty(comment, "Oops, we didn't get your comment!")){
			return true;
			}
		}
	}
		return false;

	}

	function notEmpty(elem, helperMsg){
		if(elem.value.length == 0){
			alert(helperMsg);
			elem.focus(); // set the focus to this input
			return false;
		}
		return true;
	}

	function isNumeric(elem, helperMsg){
		var numericExpression = /^[0-9]+$/;
		if(elem.value.match(numericExpression)){
			return true;
		}else{
			alert(helperMsg);
			elem.focus();
			return false;
		}
	}

	function isAlphabet(elem, helperMsg){
		var alphaExp = /^[a-zA-Z]+$/;
		if(elem.value.match(alphaExp)){
			return true;
		}else{
			alert(helperMsg);
			elem.focus();
			return false;
		}
	}

	function isAlphanumeric(elem, helperMsg){
		var alphaExp = /^[0-9a-zA-Z]+$/;
		if(elem.value.match(alphaExp)){
			return true;
		}else{
			alert(helperMsg);
			elem.focus();
			return false;
		}
	}

	function lengthRestriction(elem, min, max){
		var uInput = elem.value;
		if(uInput.length >= min && uInput.length <= max){
			return true;
		}else{
			alert("Please enter between " +min+ " and " +max+ " characters");
			elem.focus();
			return false;
		}
	}

	function madeSelection(elem, helperMsg){
		if(elem.value == "Please Choose"){
			alert(helperMsg);
			elem.focus();
			return false;
		}else{
			return true;
		}
	}

	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;
		}
	}
/*validator*/