From jQuery JavaScript Library

around line 791: after "var data = {};":

//by ruben

 if (typeof param == 'object') {
   for (i in param) {
     if (i != 'url') {
       data[i] = param[i];
     }
   }
   param = param.url;
 }

//end of by ruben

this way, i can send extra parameters when validating remotely

...

 nume : {
   required : true,
   escaped : true,
   remote : {
     url : 'check_the_name.php',
     other_var : 'blah'
   }
 }

...