rem: return !this.stacks[0].hasChildNodes(); 
add: return !this.piles[0].hasChildNodes(); 
context:   hasBeenWon: function() {    // won when the tip of the pyramid has been removed    return !this.stacks[0].hasChildNodes();  }
meta: 3385	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/3385/15f3df693ddf02fb9ee6a2662189220868368b23/pyramid.js/clean/pyramid.js