function SelectAll(the_select)
{
  for (loop=0; loop < the_select.options.length; loop++)
  {
    the_select.options[loop].selected = true;
  }
}
function DeSelectAll(the_select)
{
  for (loop=0; loop < the_select.options.length; loop++)
  {
    the_select.options[loop].selected = false;
  }
}