function gotoPage(num)
{
  var pageloc;
  
  switch(num)
  {
    case 1: pageloc = 'default.aspx'; break;
    case 2: pageloc = 'about-hanshing.aspx'; break;
    case 3: pageloc = 'hanshing-products.aspx'; break;
    case 4: pageloc = 'hanshing-quality-assurance.aspx'; break;
    case 5: pageloc = 'hanshing-manufacturing-facilities.aspx'; break;
    case 6: pageloc = 'hanshing-customers.aspx'; break;
    case 7: pageloc = 'hanshing-contact-information.aspx'; break;
  }
  
  location.href = pageloc;
}