$(function()
{
  $('.link_to_top').click(function (){
    $("#main").animate({ scrollTop: 0 }, "slow", "easeOutExpo");
    return false;
  });
  $('a').each(function (){
    var href = $(this).attr("href");
    if (href.search(/^#.+/) == 0)
    {
      $(this).attr("href", "#");
      $(this).click(function (){
        $("#main").animate({ scrollTop: $(href).offset().top }, "slow", "easeOutExpo");
        return false;
      });
    }
  });
});