Javascript Code Debugging

I'm building an app for Google App Engine using PHP and javascript. I need someone to either: 1) Debug a function that I've built which isn't working all the time or 2) Build their own function that works all the time It's a VERY simple function. Here's some more info about the project: The application is built in PHP. The main file is called [login to view URL] [login to view URL] is structured similar to this: echo "<div id='info' class='show tab'>"; include([login to view URL]); echo "</div> echo "<div id='companyinfo' class='hide tab'>"; include([login to view URL]); echo "</div> echo "<div id='materials' class='hide tab'>"; include([login to view URL]); echo "</div> etc. All but one of the divs starts out hidden. There are next/back buttons in the footer which cycle through the hidden divs, making them visible when they should be. The pages that are included contain links, and when these links are clicked they should set a value in a hidden form field. Here is the relevant code: Function call: <div class='c_left'> <a id='ops' onclick='changeClass(&#39;ops&#39;);change_selection(&#39;ops&#39;, #39;service_answer&#39;);'>Commercial Operations</a> </div> Function: function change_selection(selection, answer) { var selection = selection; var answer = answer; [login to view URL](answer).value = selection; } Form element: echo "<input type='hidden' value='' id='service_answer' />"; Include the word 'coconut' in your bid. This is a simple project, since ALL I need is this one function to work with my current code. Please keep this in mind when bidding.