$(document).ready(function(){

        var validator = $("#form_contact").validate({
                errorPlacement: function(error, element) {
                        //error.insertAfter(element);
                         error.appendTo(element.siblings("span"));
                },
                //errorClass: "form_invalid",
                event: "submit",
                onkeyup: false,
                rules: {
                    "name": 
                    {
                        required: true,
                        rangelength: [3,50]
                    },
                    "mail": 
                    {
                        required: true,
                        email: true                        
                    },
                    'msg':
                    {
                        required:true
                    }
                    	
                },
                messages: {
                	"name": 
                	{
                        required: 'Por Favor ingrese su nombre.',
                        rangelength:' al menos 3 caracteres'
                        
                    },
                    "mail": 
                    {
                        required:'Por Favor ingrese un email valido.',
                        email:'Por Favor ingrese un email valido.'                        
                    },
                    'msg':
                    {
                        required:'Debe Escribir un Mensaje'
                    }
                }
            }
        );
});