PortfolioCategoryMenu = Class.create({

   initialize: function(seconds) {
      // show a random image for each sub section
         $('fasettPortfolioCategoryMenu').select('div.category').each(function(category){
	    var count = category.down('div.images').select('div.image').length;
	    var randomNumber = Math.floor(Math.random()*count);
	    category.down('div.images').down('div.image', randomNumber).removeClassName('hidden');
         }.bind(this));
   }
});
var portfolioCategoryMenu;