code: function() {
  		if(!mfp.isOpen) return;
  		_mfpTrigger(BEFORE_CLOSE_EVENT);
  
  		mfp.isOpen = false;
  		// for CSS3 animation
  		if(mfp.st.removalDelay && !mfp.isLowIE && mfp.supportsTransition )  {
  			mfp._addClassToMFP(REMOVING_CLASS);
  			setTimeout(function() {
  				mfp._close();
  			}, mfp.st.removalDelay);
  		} else {
  			mfp._close();
  		}
  	}
docs: Closes the popup