function browserChange()
{
  if (parseInt(navigator.appVersion) == 4 && navigator.appName.indexOf("Netscape") != -1)
  {
     window.open('shop/shopframeset.html','','width=650,height=450,scrollbars=yes');
  }
  else
  {
     window.open('shop/shopframeset.html','','width=800,height=600,scrollbars=yes')
  }
}