// check whether page is loading from the Web or from my development environment

if (document.URL.indexOf("www.lacchin.co.uk")>-1 || document.URL.indexOf("www.rula.pwp.blueyonder.co.uk")>-1)
 {
  // page is loading from the Web, so ensure we've come via the topmost frame
  if (document.referrer=="" ||
      (document.referrer.indexOf("www.lacchin.co.uk")<0 &&
       document.referrer.indexOf("www.rula.pwp.blueyonder.co.uk")<0)
     )
   {
    window.location='http://www.lacchin.co.uk';
   }
 }