MDN 7/7/2015

I am still working on element hover and selection; what is new is the incorporation of the possibility of having displayed and hidden diagrams. In a site with multiple diagrams (e.g. more than two), a simple diagram browser is needed. Users can select the diagrams to be displayed on the page hiding the other diagrams. Adding this feature, I had to change some code in mouse_hover and mouse_click events. I am done with changing the code, I am testing all possibilities.