browserName = navigator.appName;
browserVer = parseInt(navigator.appVersion);

if (browserName == "Netscape" && browserVer >= 3) version="ok";
else if (browserName == "Microsoft Internet Explorer" && browserVer >= 4) version="ok";
else version="no";

if (version == "ok") {

m1 = new Image();
m1.src = "images/bt_1_off.gif";
m1_on = new Image();
m1_on.src = "images/bt_1_on.gif";

m2 = new Image();
m2.src = "images/bt_2_off.gif";
m2_on = new Image();
m2_on.src = "images/bt_2_on.gif";

m3 = new Image();
m3.src = "images/bt_3_off.gif";
m3_on = new Image();
m3_on.src = "images/bt_3_on.gif";

m4 = new Image();
m4.src = "images/bt_4_off.gif";
m4_on = new Image();
m4_on.src = "images/bt_4_on.gif";


//fake
m5 = new Image();
m5.src = "images/preloader.gif";
m5_on = new Image();
m5_on.src = "images/preloader.gif";

}

//Preload button?w podmiany
function preload() {
  if (!document.images) return;
  var ar = new Array();
  var arguments = preload.arguments;
  for (var i = 0; i < arguments.length; i++) {
    ar[i] = new Image();
    ar[i].src = arguments[i];
  }
}


function img_over(_id,_obrazek) {
	//if (version == "ok") {
	//	document[obrazek].src = eval(obrazek + "_on.src");
	//}
}

function img_out(_id,_obrazek) {
clearhidemenu();
alert('aaa');
//	if (version == "ok") {
	//	document[obrazek].src = eval(obrazek + ".src");
	//}
}