[jQuery] What's wrong with my Select Form code?

[jQuery] What's wrong with my Select Form code?


     $(document).ready(function() {
     $('div.hidden').hide();
     $('#node-58 > select.state').change(function () {
     $(this).find("option:selected"); // I think this line needs a
function to wrap the next bit of code?
     var equiv = $('#' + this.className);
         if(equiv.length){
            equiv.show();
         }
     });
    });
Explanation: I have a bunch of divs with class 'hidden' that
automatically have to hide. Those divs also have IDs each
corresponding to a CLASS on an <option> tag within a <select> box.
The idea is that when you choose an option with class ".foo" it will
show the div with ID "#foo".
So far my .hidden divs get hidden, but they never get activated by the
select box.