var f=0;
if(navigator.appVersion.substring(0,1)>=3) {f=1;};
if (f){
  var img1=new Image();
  img1.src="images/menu-fiz.gif";
  var img11=new Image();
  img11.src="images/menu-fiz-hover.jpg";

  var img2=new Image();
  img2.src="images/menu-yur.gif";
  var img22=new Image();
  img22.src="images/menu-yur-hover.jpg";

  var img3=new Image();
  img3.src="images/menu-contact.gif";
  var img33=new Image();
  img33.src="images/menu-contact-hover.jpg";

  var img4=new Image();
  img4.src="images/menu-news.gif";
  var img44=new Image();
  img44.src="images/menu-news-hover.jpg";

  var img5=new Image();
  img5.src="images/menu-ergolife.gif";
  var img55=new Image();
  img55.src="images/menu-ergolife-hover.jpg";

  var img6=new Image();
  img6.src="images/menu-ipt-strah.gif";
  var img66=new Image();
  img66.src="images/menu-ipt-strah-hover.jpg";

  var img7=new Image();
  img7.src="images/menu-about.gif";
  var img77=new Image();
  img77.src="images/menu-about-hover.jpg";

  var img8=new Image();
  img8.src="images/menu-marathon.gif";
  var img88=new Image();
  img88.src="images/menu-marathon-hover.jpg";

}