if(navigator.appVersion.charAt(0) >= "3")
{
var img = new Array();
// top page only
// pagetop
img[1] = new Image();  img[1].src = "menu/img/pagetop_o.gif";
img[2] = new Image();  img[2].src = "menu/img/pagetop.gif";
// home
img[7] = new Image();  img[7].src = "menu/img/home_o.gif";
img[8] = new Image();  img[8].src = "menu/img/home.gif";
// sitemap
img[13] = new Image();  img[13].src = "menu/img/sitemap_o.gif";
img[14] = new Image();  img[14].src = "menu/img/sitemap.gif";
// policy
img[19] = new Image();  img[19].src = "menu/img/policy_o.gif";
img[20] = new Image();  img[20].src = "menu/img/policy.gif";
// privacy
img[21] = new Image();  img[21].src = "menu/img/privacy_o.gif";
img[22] = new Image();  img[22].src = "menu/img/privacy.gif";
// home news & recruit
img[200] = new Image();  img[200].src = "menu/img/btn_news_o.gif";
img[201] = new Image();  img[201].src = "menu/img/btn_news.gif";
}

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

function _out(nam,num) {
document.images[nam].src = img[num].src;
}