JavaScript: Dynamic Sort

gistfile1.js

// Taken from http://stackoverflow.com/questions/1129216/sorting-objects-in-an-array-by-a-field-value-in-javascript
dynamic_sort = function(property) {
  var sort_order = 1;
  if(property[0] === "-") {
      sort_order = -1;
      property = property.substr(1, property.length - 1);
  }
  return function (a,b) {
      var result = (a[property] < b[property]) ? -1 : (a[property] > b[property]) ? 1 : 0;
      return result * sort_order;
  }
}