docs: function(){
  											this.element.find("iframe").contents().find('body').append(tab);
  											var frame  = this.element.find("iframe")[0];
  											var win = frame.contentWindow || frame
  											win.print();
  
  											this.element.find("iframe").contents().keydown(function(e) {
  												if (e.keyCode == 27) { //ESC
  													popupCreator.close();
  													if(document.activeElement){
  														// Restore focus back to document, by removing focus from active element
  														document.activeElement.blur();
  													}
  												}
  											});
  										}