Can eventlistener call a setter function?

programming flash
1

Hi once again
I have a set function…

// AS3
 public function set toolName(thisTool:String)
        {
   _theTool = thisTool;
        }

and an eventlistener


newTool.addEventListener(MouseEvent.CLICK, clickTool);

The ClickTool function


private  function clickTool(event)
  {
   thisTool = event.currentTarget + "";
   switch (thisTool)
   {
    case "[object trowel]":
    _theTool="Trowel";
    break;
}}

The problem is that when I use the get function I find that _theTool is not updated.


 public function get toolName():String
        {
            return _theTool;
        }

Could anyone help me with this please?