function getcookie(cookiename) {
    var cookiestring=""+document.cookie;
    var index1=cookiestring.indexOf(cookiename);
    if (index1==-1 || cookiename=="") return ""; 
    var index2=cookiestring.indexOf(';',index1);
    if (index2==-1) index2=cookiestring.length; 
    return unescape(cookiestring.substring(index1+cookiename.length+1,index2));
}

function setcookie(name,value){
    cookiestring=name+"="+escape(value);
    document.cookie=cookiestring;
    if(!getcookie(name)){
        return false;
    } else {
        return true;
    }
}

function deleteCookie(cookiename) {
  var exp = new Date();
  exp.setTime(exp.getTime() - 1);
  var cookieVal = getcookie(cookiename);
  if (cookieVal != null)
    document.cookie = cookiename + "=" + cookieVal + "; expires=" + exp.toGMTString();
  return;

}
function isCookieEnabled(){

            var errorMessage = "";

            if (setcookie('test','none'))
            {
                deleteCookie("test");
                getElmById("ErrorMessage").innerHTML = "";
                return true;
            }
            else
            {
                errorMessage=errorMessage + getErrorMessage(406) + '<br>';
                getElmById("ErrorMessage").innerHTML = errorMessage;
                return false;
            }
}