document.write('<style type="text/css">#mainmenu { visibility: hidden; }</style>');


$(function()
{
  var ulWidth = $('#mainmenu ul.nice-menu-down').width();
  var liWidth = 0;
  var liCount = 0;
  var liMargin = 0;

  var li = $('#mainmenu ul.nice-menu-down > li').each(function()
  {
    liWidth += $(this).width();
    liCount++;
  });

  liMargin = (ulWidth - liWidth) / (liCount-1);

  li.not(':last').css('margin-right', liMargin+'px');

  document.getElementById('mainmenu').style.visibility = 'visible';
});