function ThanksForSigning(email)
        {
            alreadySignedIn = getCookie(email);
            if (alreadySignedIn!=null && alreadySignedIn!="")
            {
                if(alreadySignedIn == "TRUE")
                {
                    setCookie(email, "FALSE", 1);
                   }
                else
                {
                    setCookie(email, "TRUE", 1)
                    alert("Thank you for signing up to Brenda Watson's Healthy Living e-letter.\nYour preferences have been recorded and you'll receive an e-mail confirmation shortly");
                }
            }
            else
            {
                setCookie(email, "TRUE", 1)
                alert("Thank you for signing up to Brenda Watson's Healthy Living e-letter.\nYour preferences have been recorded and you'll receive an e-mail confirmation shortly");
            }
            
        }
        
        function setCookie(c_name,value,expiredays)
        {
            var exdate=new Date();
            exdate.setDate(exdate.getDate()+expiredays);
            document.cookie=c_name+ "=" +escape(value)+
            ((expiredays==null) ? "" : ";expires="+exdate.toGMTString());
        }
        
        function getCookie(c_name)
        {
            if (document.cookie.length>0)
            {
                c_start=document.cookie.indexOf(c_name + "=");
                if (c_start!=-1)
                { 
                    c_start=c_start + c_name.length+1; 
                    c_end=document.cookie.indexOf(";",c_start);
                    if (c_end==-1) c_end=document.cookie.length;
                    return unescape(document.cookie.substring(c_start,c_end));
                } 
            }
            return "";
        }