function getCookie(cookieName){

    if(document.cookie.length>0){

     cStart=document.cookie.indexOf(cookieName+"=");

        if(cStart!=-1)
        {
            cStart=cStart+cookieName.length+1;
            cEnd=document.cookie.indexOf(";",cStart);
            if(cEnd==-1){
             cEnd=document.cookie.length;
            }
         return unescape(document.cookie.substring(cStart,cEnd));
        }
    }

}