code: function(array) {
              var worker = [];
  
              function rFlatten(a) {
                  var i, ln, v;
  
                  for (i = 0, ln = a.length; i < ln; i++) {
                      v = a[i];
  
                      if (Ext.isArray(v)) {
                          rFlatten(v);
                      } else {
                          worker.push(v);
                      }
                  }
  
                  return worker;
              }
  
              return rFlatten(array);
          }
docs: Recursively flattens into 1-d Array. Injects Arrays inline.
  
  @param {Array} array The array to flatten
  @return {Array} The 1-d array.