function getURL(which)
{
  var _url = '/default.aspx';
  switch(which)
  {
    case '1': _url = '/default.aspx'; break;
    case '2': _url = '/page/products/default.aspx'; break;
    case '3': _url = '/page/products/chemicals.aspx'; break;
    case '4': _url = '/page/products/instruments.aspx'; break;
    case '5': _url = '/page/products/pumps.aspx'; break;
    case '6': _url = '/page/services.aspx'; break;
    case '7': _url = '/page/projects.aspx'; break;
    case '8': _url = '/page/contact-us.aspx'; break;
  }
  
  location.href = _url;
}