(function($) {
  var current;
  $.fn.columnHoverClass = (function(className) {
    $('td', this).hover(function() {
      var index = $.browser.safari ? $(this.parentNode).children().index(this) : this.cellIndex;
      current = $(this.parentNode.parentNode).find('tr > td:nth-child('+ index +')').addClass(className);
    }, function() {
      current.removeClass(className);
    });
    return this;
  });
})(jQuery);




$(function() {
  $('table').filter(".colhilite").columnHoverClass('columnhover');
});