function check_length(event, name, maxLen)
{
   var textarea = document.getElementById(name);
   var count = document.getElementById(name + '_count');

   count.innerHTML = maxLen - textarea.value.length;

   if (textarea.value.length >= maxLen)
   {
      textarea.value = textarea.value.substring(0, maxLen);
      if( event.keyCode != 8 ) return false;
   }

   return true;
}

function display_length(name, maxLen)
{
   var textarea = document.getElementById(name);
   var count = document.getElementById(name + '_count');

   count.innerHTML = maxLen - textarea.value.length;
}