function IsEmpty(value) 
{
	value = jQuery.trim(value);
	if (value == "")
	{
		return true;
	} else {
		return false;
	}
} 

function IsEmail(email) 
{
	var regex = /^\w+([\.-]?\w+)*@\w+([\.-]?\w+)*(\.\w{2,3})+$/;
	if (regex.test(email)) 
	{
		return true;
	} else {
		return false;
	}
} 

function validateLogin()
{
	var email = $("#email").val();
	var password = $("#password").val();
	
	if (IsEmpty(email) && IsEmpty(password))
	{
		alert("Required fields are empty");
		return false;
	} else {
		if (!IsEmpty(email)) 
		{
			if (!IsEmail(email))
			{
				alert("Please supply a valid email address");
				return false;
			}
		} else {
			alert("Email Address field is empty.");
			return false;
		}

		if (IsEmpty(password))
		{
			alert("Password field is empty.");
			return false;
		}
	}

	return true;
}

$(document).ready(function(){
	$('.billsame').click(function(){
		$('#hidethis').toggle();
	});

	$('.billdifferent').click(function(){
		$('#hidethis').toggle();
	});
});