function AdditionalValidate(source, arguments)
 {
   if (arguments.Value.length<1000)
   {
    arguments.IsValid=true;
   }
   else
   {
     arguments.IsValid=false;
   }
 }
 
 function answto(nick)
{
var inp=document.getElementById("GifComments_txtComment") ;
inp.value=nick+": " + inp.value;
window.location.href ="#add";
}