Extjs Custom TriggerField implementation

hi, this is my first question here.. I hope I can contribute with answers too..

My need is to build an Extjs TriggerField implementation which open on trigger click a Panel with a custom loaded page inside... example: When I click the trigger button I what to open a panel specifying an url as '/Views/Test/Blabla.aspx' and then storing the selection in the trigger field value. I hope someone could help me Thanks in advance

From stackoverflow

• There is an example which pops up a Panel in your examples directory under examples/form/forum-search.html

  It's based on a ComboBox (But it configures it to hide the trigger button)

  BTW, probably a better idea to ask for help at http://extjs.com/forum/

  Hoghweed : I asked help but the only obtained answer was "There's a lot to study.."