$(document).ready(function() {

  // Get the table element by ID.

  $('#data-table')

  // Get all <a class="toggle"> elements inside the table.

  .find('a.toggle')

  // Set a click handler for each.

  .click(function(e) {

    // The details of this will depend on 

    // where your toggle trigger element is 

    // relative to the date element that you 

    // want to toggle.

    //

    // In this example, the date is in the <span />

    // immediately preceding the <a /> toggle.

    //

    // So we can get the <a /> itself by $(e.target),

    // then the date element to toggle using $.prev().

    var date = $(e.target).prev();

    date.toggle();

  });

});