$("#login_form").validate({
	errorElement: "em",
   	rules: {
     	login_email: {
       		required: true,
       		email: true
     	},
     	login_password: {
     		required: true,
     		minlength: 6
     	}
   	},
   	messages: {
     	login_email: {
       		required: "error_msg",
      		email: "error_msg"
     	},
     	login_password: {
     		required: "error_msg",
     		minlength: "error_msg"
     	}
   	}
	});