function selectionSort(items) {
    var length = items.length;      
    for (var i = 0; i < length-1; i++) {
    var min = i;
    for (var j = i+1; j < length; j++) {
      if(items[j] < items[min]) {
        min = j;
      }
    }        
    if(min != i) {
      var tmp = items[i];
      items[i] = items[min];
      items[min] = tmp;
    }
    }
}