function copyValue(source, destination)
{
   document.getElementById(destination).value = document.getElementById(source).value;
}

function updateItemPerPage(value)
{
   var location = document.location.href;

   var paramPos = location.indexOf('?');
   if (paramPos >= 0)
      location = location + '&count=' + value;
   else
   {
      if (location.indexOf('count=') >= 0)
         location = location.replace('count=[0-9]+', 'count=' + value);
      else
         location = location + '?count=' + value;
   }
}