function checkCookie()
{
if (!navigator.cookieEnabled)
{
   alert("Please enable cookies on your browser to use this site");
   return false;
}
else
{
   document.cookie = "test=test";
   if (document.cookie.indexOf('test=test')==-1)
   {
     alert("Please enable cookies on your browser to use this site");
     return false;
   }
}
}