pic1 = new Image();
  pic1.src = "banner/pic/rekron_logo.gif";
  pic2 = new Image();
  pic2.src = "banner/pic/netacademia.jpg";

  var i = 0;

  function bannerbox() {
    i++;
    switch (i) {
    case 1:
      document.banner.src = pic1.src;
      break;
    case 2:
      document.banner.src = pic2.src;
      i = 0;
      break;
    }
    setTimeout("bannerbox()", 6000);
  }

  function bannerlink() {
	switch (i) {
	case 1:
	  window.open("http://www.rekron.hu","rekron");
	  break;
	case 0:
	  window.open("http://www.netacademia.net","netacademia");
	  break;
	}
	}