title: jQuery iterate through <td> in selected row
body: <p>I need to iterate through all the  elements in an table. Actually, I need to iterate through all the columns of a HTML table, to set the "bSearchable" attribute for the datatables  jquery plugin. </p>
  
  <p>I have a variable column number table (based on the value selected in a dropdownlist, I generate a table that has either 12 or 13 columns), so I cannot use "aoColumns" attribute. </p>
  
  <p>I need to return to "aoColumns" a custom javascript array setting for each column "bSearchable" to true or false;</p>
  
  <p>So, I need to add to this vector "bSearchable" : true for the first column and "bSearchable" : false for all the other columns.</p>
  
  <p>I tried something like this:</p>
  
  <pre><code>function setSearchable() {
      var result = new Array();
      result.push([{"bSearchable": true}]);
      $('#productsTable tr').eq(1).  // this is where I got stuck
  }
  </code></pre>