(function($){
  $.fn.equalBlocks = function() {
    var tallest = 0,
        rowStart = 0,
        items = [],
        $el,
        topPos = 0;
    
    $(this).each(function() {
      $el = $(this);
      topPos = $el.position().top;
      
      if (rowStart != topPos) {
        // we just came to a new row.  Set all the heights on the completed row
        for (i = 0 ; i < items.length ; i++) {
          items[i].height(tallest);
        }
        
        // set the variables for the new row
        items.length = 0; // empty the array
        rowStart = topPos;
        tallest = $el.height();
        items.push($el);
      } else {
        // another item on the current row.  Add it to the list and check if it's taller
        items.push($el);
        tallest = Math.max(tallest, $el.height());
      }
      
      // do the last row
      for (i = 0 ; i < items.length ; i++) {
        items[i].height(tallest);
      }
    });
  }
})(jQuery);