javascript - get name of array key -

i have json this:

{         "myname":{                  "forename":"alf",                  "surname":"cool",                  "phone":"000000000000",                  "email":"mail@com" },..... 

my code can access each key

 (var key in contacts) {                           if (contacts.hasownproperty(key)) {                                 var newrow = new element('li');                                 newrow.addclass('contact');                                 newrow.set('html', contacts[key].forename + ' ' + contacts[key].surname);                                  var innerspan = new element('span').set('html', contacts[key].phone + ', ' + contacts[key].email);                                 innerspan.addclass('details');                                 innerspan.set('html', contacts[key].phone + ', ' + contacts[key].email);                                 innerspan.inject(newrow);                                  newrow.addevent("click", this.setfromcontact.bind(this, contacts[key]));                                 newrow.inject($(this.list));                                // save myname variale here!!                            }                  } 

now want save "myname" variable.

you can test value of keys , if value "myname" can save variable.

var myname = ''; (var key in contacts) {     if(key == "myname")         myname = key; }