function formValidator(){
	// Make quick references to our fields
	var services = document.getElementById('services');
	var rooms = document.getElementById('rooms');
	var adults = document.getElementById('adults');
	var children = document.getElementById('children');
	var name = document.getElementById('name');
	var tel = document.getElementById('tel');
	var email = document.getElementById('email');
	var city = document.getElementById('city');
	var sdate = document.getElementById('start-date');
	var edate = document.getElementById('end-date');
	

	
	// Check each input in the order that it appears in the form!

	
	
	if(isNumeric(rooms, "Please enter No. of Rooms")){

		if(isNumeric(adults, "Please enter No. of Adults")){
	

	if(isAlphabet(name, "Please enter your Name")){
		
			if(emailValidator(email, "Please enter a valid Email Address")){
				
						if(isNumeric(tel, "Please enter your Contact Number")){
							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 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;
	}
}