i'd like to be able to have users post articles in certain categories and then display each category on a different div layer.
in the top left of my site i have a graphical navigation bar. when a user clicks on one of the menu buttons, i have it set up to increase the z-index of its corresponding layer in the bottom left of the site, thus hiding all other layers.
i'd like to be able to show only specific post categories for each layer. how can i do this?