for (i = 0; i < n; i++) { node = node.next; } 
for (var i = 0; i < n; i++) { node = node.next; } 
  randomNode: function() {    var n = Math.floor(Math.random() * this.length), node = this.first;    for (i = 0; i < n; i++) { node = node.next; }    return node;  }
3123	/local1/tlutelli/issta_data/temp/all_js/javascript/2007_temp/2007/3123/fd75ce32b9ee947f894dcccdeff7108e4d333ac6/geometry.src.js/clean/src/geometry.src.js