Customize layerslide

The task is customization of a slide script. The task are described below. For illustration check the attached file and the link [login to view URL] Currently (demo here: [login to view URL]) - when mouse is over the thumbnail the preview is displayed - when clicking the thumbnail the content in the box above thumbnail is changed I need the following customization (See Fig. above): - Preview is displayed only after clicking in the link “Preview” (Fig above) - Content is changed when clicking on the link “Content” (Figure above)