Is it possible to specify an element's onClick behaviour in CSS?

I have a page where I am dynamically creating a bunch of items via javascript.  Those items are clickable, and the onclick handler is currently specified in Javascript as below:

                  t.onclick=function(){
                        //do something;
                        return false;
                  }

However, on postback, all of these items lose their onclick behaviors.  As I review the output, I notice that the onClick attributes never get written to the output html, so I assuming the handlers just remain in memory on that page.  When the page is posted back, all of those handlers are gone.

My next step was to try using "setAttribute" to specify the onClick functions, but that did not seem to work at all, as nothing was clickable even on the first loading of the page.

I already have a CSS class specified for all of these, so I was just wondering if I could enforce the onClick behavior in CSS, so that I don't have to find another way to set the onClick attribute for these elements.

Any help you could offer would be very much appreciated.  I am posting this with big points because I need an answer fast.