if (document.images) {
  var printp = new Image();
  printp.src = "fileadmin/img/icons/printp.gif";
  var printa = new Image();
  printa.src = "fileadmin/img/icons/printa.gif";
  var fontbiggerp = new Image();
  fontbiggerp.src = "fileadmin/img/icons/fontbiggerp.gif";
  var fontbiggera = new Image();
  fontbiggera.src = "fileadmin/img/icons/fontbiggera.gif";
  var fontresetp = new Image();
  fontresetp.src = "fileadmin/img/icons/fontresetp.gif";
  var fontreseta = new Image();
  fontreseta.src = "fileadmin/img/icons/fontreseta.gif";
  var fontsmallerp = new Image();
  fontsmallerp.src = "fileadmin/img/icons/fontsmallerp.gif";
  var fontsmallera = new Image();
  fontsmallera.src = "fileadmin/img/icons/fontsmallera.gif";
}

function act(imgName) {
  if (document.images) 
    document.images[imgName].src = eval(imgName + "a.src");
}

function inact(imgName) {
  if (document.images)
    document.images[imgName].src = eval(imgName + "p.src");
}