$.validator.setDefaults({ submitHandler: function() { document.forms[0].submit();} 
});
$().ready(function() { 
$(".shareform").validate({ 
rules: { yourname: { required: true, minlength: 2 }, recipient: { required: true, minlength: 2 }, email: { required: true, email: true } },	
messages: { yourname: { required: "Please enter your name", minLength: "Your Name must consist of at least 2 characters" },
recipient: { required: "Please provide your recipient's name", minLength: "Your recipient's name must be at least 2 characters long" },
email: "Please enter a valid email address"	}
});
});