[jQuery] encode data in AJAX post?

[jb007nd]

Do i need to encode my data send through AJAX post?

Ex.
var name = $("input#name").val();

var dataString = 'name='+ name;

///////////////////////////////////////////////
$.ajax({
                  type: "POST",
                  url: "mail.ajax.php",
                  data: dataString,
                  dataType: "html"
     });

///////////////////////////////////////////////

How can I do an URLecode?

thanks!