rem: for(var i = 0; i < this.stacks.length; i++) if(!this.stacks[i].hasChildNodes()) spaces.push(this.stacks[i]); 
add: for(var i = 0; i != this.piles.length; i++) if(!this.piles[i].hasChildNodes()) spaces.push(this.piles[i]); 
context:   getEmptyPiles: function() {    var spaces = [];    for(var i = 0; i < this.stacks.length; i++)      if(!this.stacks[i].hasChildNodes()) spaces.push(this.stacks[i]);    return spaces;  },
meta: 3385	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/3385/15f3df693ddf02fb9ee6a2662189220868368b23/freecellmover.js/clean/freecellmover.js