title: adding numeric values of variable number of forms
body: <p>I'm trying to use jquery to loop through a block of forms that contain numeric data and add it all up to be displayed in a form with id grand. I have the ability to dynamically add new forms, so the number of forms I'm looping through will change. Here's my jquery code I wrote that isn't working for whatever reason:</p>
  
  <pre><code>$('#table').delegate('input#grand', 'focus', function(){
  var grand = $(input.expend).map(function(){
    return this.value;
  });
  $(grand).each(function(){
    var g = 0;
    g+= $(this);
    $('input#grand').val(g);
  });
  </code></pre>
  
  <p>});</p>