atach event to list

log_click.js

function bind_click_logging() {
  $('.product_items > a').click(function() {
    // fetch link destination
    var href = $(this).attr('href');

    // extract product id
    var _href = href.split('/');
    var id = parseInt(_href[_href.length-2]);

    // set timeout 
    var t = setTimeout('window.location.href = "' + href + '";', 500);

    // do remote call  
    $.getJSON(
      'http://api.thesocialdigits.com/v1/__log_click?callback=?', 
      {
        'key': 'your_api_key', // <-- insert api key here
        'payload': JSON.stringify({'product': id,
                                   'metadata': {'api': 'search', 'args': {}}})
      }, 
      function() {
        // on success, clear timeout and go!
        clearTimeout(t);
        window.location.href = href; // go on success
      }
    );

    return false; // don't go yet
  });
}