$j(function() {
  // fix png alpha transparency in IE<6
  // for all png img[@src$=.png]
  //
  $j('img[@src$=.png]').ifixpng();

  //open windows without embedding target="_blank"
  $j('a[@rel$=external]').click(function() {
    this.target = "_blank";
  });

  //popupwindow
  $j(".popupwindow").popupwindow(profiles);
});