title: Click event on table row, except td with class="someClass"
body: <p>I want to do some operations after click on row, except <strong>td</strong> with class='someClass'</p>
  
  <pre><code>  $('#mainTable tr td:not([class=someClass])').unbind().live('click',function () 
    {
    //some operation
    });
  </code></pre>
  
  <p>what is wrong?</p>
  
  <p><strong>note</strong>: this td is not last td in table. </p>