I am not sure what would be the best approach, but my searches so far have lead to zero solutions... I simply want to add user selectable page width to php pages, using a single button. The following two sites have good examples of what I am talking about: http://www.anandtech.com/ (trigger in upper right corner) http://www.slickdeals.net/ (trigger on right, part way down page) I don't care if it is javascript, php, whatever... Just looking for a guide or script I could reference. Thanks for any suggestions!