if(navigator.appVersion.charAt(0) >= 3) {
        var img = new Array();
        img[0] = new Image(); img[0].src = "../images/common/hd_map01.gif";
        img[1] = new Image(); img[1].src = "../images/common/hd_map02.gif";

        img[2] = new Image(); img[2].src = "../images/common/hd_lnk01.gif";
        img[3] = new Image(); img[3].src = "../images/common/hd_lnk02.gif";
		
		img[4] = new Image(); img[4].src = "../images/common/hd_inq01.gif";
        img[5] = new Image(); img[5].src = "../images/common/hd_inq02.gif";
		
		img[6] = new Image(); img[6].src = "../images/common/ft_nvi01.gif";
        img[7] = new Image(); img[7].src = "../images/common/ft_nvi02.gif";
}
function change_image(nam,num) {
        if(navigator.appVersion.charAt(0) >= 3) {
                document.images[nam].src = img[num].src;
        }
}