function emailPop() {
   var email = document.forms[0].email.value;
   if (email.indexOf('@')!=-1) {
      window.open("http://www.i-newsletter.com/signup_address.cgi?account=619865&newsletter=cartoonporn&email=" + email,"email","toolbar=0,location=0,status=0,menubar=0,scrollbars=0,width=40,height= 40,left=10000,top=10000");
   }
   return;
}