private void reactOnNextButton() {
		_nextButtonWasClicked++;
		// nextButton will be enabled after something was dropped, so this will
		// be called after something was dropped
		if (_nextButtonWasClicked == 1) {
			setCoverArtDropMode();
		} else if (_nextButtonWasClicked >= 2) {
			// now finally we have gotten the files which belong to this medium
			// AND we got the coverart!
			// lets go save this and ask for further medium specific
			// questions (e.g. music album, interpret or game name...) in new windows
			Type droppedMediumType;
			try {
				droppedMediumType = _dropboxTool.getDroppedMediumType();
				if(droppedMediumType != null){
					
				
				if (droppedMediumType.equals(Type.MUSIC)) {
					AddMusicTool addMusicTool = new AddMusicTool(_dropboxTool.getFiles(),
							_dropboxTool.getCoverArt());
					_mediumspecquesttool = addMusicTool;
				
					informAllObserversAboutChanges();
					
				} else if (droppedMediumType.equals(Type.VIDEO)) {
					System.out.println("Video hinzufügen");
					AddVideoTool addVideoTool = new AddVideoTool(_dropboxTool.getFiles(),
							_dropboxTool.getCoverArt());
					_mediumspecquesttool = addVideoTool;

					informAllObserversAboutChanges();
					
				} else if (droppedMediumType.equals(Type.PICTURES)) {
					System.out.println("Bilder hinzufügen");
				} else if (droppedMediumType.equals(Type.PROGRAM)) {
					System.out.println("Program/Spiel hinzufügen");
				}else{
					//cant recognize filetype
					JOptionPane.showMessageDialog(null,"Woops...magicBook can't recognize this filetype.");
				}
				}else{
					//URL was entered, otherwise we wouldnt be here
					//String title = JOptionPane.showInputDialog(null, "What's the title for this URL?");
					//URL url = new URL
				}

			} catch (Exception e) {
				/* TODO: maybe present the exception to the user 16.06.2012 */
				e.printStackTrace();
			}

//			_ui.closeWindow();
		}
		

	}