Item Pickup and gui problem

I've got a problem interfacing my collision code and my gui.

I'm trying to add a simple gui display that will show how much silver I've collected. Every thing works fine until I run into a piece of silver. The object deletes like it should but when I look at my silver counter it always says 1 and it will never go higher. It's probably something simple but I can't seem to figure it out, so here is the code incase someone out there knows what's wrong.

datablock ItemData(Silver)
{
   category = "Silver";
   shapeFile = "~/data/shapes/customobj/coins/silvercoins/silvercoin.dts";
};

function ItemData::create(%data)
{
   %obj = new Item()
{
   datablock = %data;
   static = true;
};
}

//spot of problems
function Silver::onCollision(%this, %obj, %col)
{
  if (%col.getClassName() $= "Player")
   {
      %silver++;
      SilverCount.setText("Silver:" SPC %silver);
      %obj.delete();
   }
}