function requireAgreeTerms(id, cid) { 
   $(".agree_terms." + cid).attr('checked', false);
   $("#" + id).attr("disabled", "disabled");
   

   $(".agree_terms." + cid).live("click", function(){
       if($(this).is(':checked')) {              
           $("#" + id).removeAttr("disabled");
       } else { 
           $("#" + id).attr("disabled", "disabled");
       }
   });
}