code: function() {
  
  						var self = this, item;
  
  						self.inWork = true;
  						
  						if (!self.queue.length) {
  							return;
  						}
  						
  						item = self.queue.shift();
  
  						if (item.type == 'wait') {
  							setTimeout(function(){
  								self._process();
  							}, item.duration*1000);
  						} else {
  							self.context = item.func.apply(self.context, item.args);
  							self._process();
  						}
  						return self;
  					}
docs: Process the queue
  Shifts an item off the queue and waits for it to finish