andyf-7/client side mail validation

## client side mail validation
 function ValidateEmail(email) {
        var expr = /^([\w-\.]+)@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.)|(([\w-]+\.)+))([a-zA-Z]{2,4}|[0-9]{1,3})(\]?)$/;
        return expr.test(email);
    };
	function ValidateEmail(email) {
	var expr = /^([\w-\.]+)@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.)\|(([\w-]+\.)+))([a-zA-Z]{2,4}\|[0-9]{1,3})(\]?)$/;
	return expr.test(email);
	};