if(navigator.appVersion.charAt(0) >= 3){
var img = new Array();
img[0]=new Image();img[0].src = "images/menu_02.gif";
img[1]=new Image();img[1].src = "images/menu_02_ro.gif";
img[2]=new Image();img[2].src = "images/menu_04.gif";
img[3]=new Image();img[3].src = "images/menu_04_ro.gif";
img[4]=new Image();img[4].src = "images/menu_06.gif";
img[5]=new Image();img[5].src = "images/menu_06_ro.gif";
img[6]=new Image();img[6].src = "images/menu_08.gif";
img[7]=new Image();img[7].src = "images/menu_08_ro.gif";
img[8]=new Image();img[8].src = "images/menu_10.gif";
img[9]=new Image();img[9].src = "images/menu_10_ro1.gif";
img[10]=new Image();img[10].src = "images/menu_10_ro2.gif";

}
function change_image(nam,num){
if(navigator.appVersion.charAt(0) >= 3){
document.images[nam].src = img[num].src;
}
}