if(navigator.appVersion.charAt(0) >= "3") {
var img = new Array();

img[0] = new Image(); img[0].src="../img/01.gif";
img[1] = new Image(); img[1].src="../img/01_on.gif";
img[2] = new Image(); img[2].src="../img/02.gif";
img[3] = new Image(); img[3].src="../img/02_on.gif";
img[4] = new Image(); img[4].src="../img/03.gif";
img[5] = new Image(); img[5].src="../img/03_on.gif";
img[6] = new Image(); img[6].src="../img/04.gif";
img[7] = new Image(); img[7].src="../img/04_on.gif";
img[8] = new Image(); img[8].src="../img/05.gif";
img[9] = new Image(); img[9].src="../img/05_on.gif";
img[10] = new Image(); img[10].src="../img/06.gif";
img[11] = new Image(); img[11].src="../img/06_on.gif";
img[12] = new Image(); img[12].src="../img/top.gif";
img[13] = new Image(); img[13].src="../img/top_on.gif";
img[14] = new Image(); img[14].src="../img/topics.gif";
img[15] = new Image(); img[15].src="../img/info.gif";
img[16] = new Image(); img[16].src="../img/style.gif";
img[17] = new Image(); img[17].src="../img/climate.gif";
img[18] = new Image(); img[18].src="../img/shop.gif";
img[19] = new Image(); img[19].src="../img/contact.gif";
img[20] = new Image(); img[20].src="../img/sound.gif";
img[21] = new Image(); img[21].src="../img/sound_on.gif";
}

function _in(nam1,num1,nam2,num2)

{
if(navigator.appVersion.charAt(0) >= "3"){
  document.images[nam1].src = img[num1].src;
  document.images[nam2].src = img[num2].src;
 }
}

function _out(nam1,num1,nam2,num2)

{
document.images[nam1].src = img[num1].src;
document.images[nam2].src = img[num2].src;

}