function changeValue( sValue )
{
  document.forms.form_type[0].value = sValue;
}

function changeURL( sId )
{
  targetPage = '';
  
  if ( document.forms.form_type[0].value == "gif" )
    targetPage = 'examples_detail_gif.php';
  else if ( document.forms.form_type[0].value == "dwf" )
    targetPage = 'examples_detail_dwf.php';
    
  targetPage = targetPage + '?id=' + sId;
  //alert( targetPage );
  window.location = targetPage;
}