if(navigator.appVersion.charAt(0) >= 3) {
        var img = new Array();
        img[0] = new Image(); img[0].src = "../images/common/menu_01.gif";
        img[1] = new Image(); img[1].src = "../images/common/menu_02.gif";

        img[2] = new Image(); img[2].src = "../images/common/menu_03.gif";
        img[3] = new Image(); img[3].src = "../images/common/menu_04.gif";
		
		img[4] = new Image(); img[4].src = "../images/common/menu_05.gif";
        img[5] = new Image(); img[5].src = "../images/common/menu_06.gif";
		
		img[6] = new Image(); img[6].src = "../images/common/menu_07.gif";
        img[7] = new Image(); img[7].src = "../images/common/menu_08.gif";
		
		img[8] = new Image(); img[8].src = "../images/common/menu_09.gif";
        img[9] = new Image(); img[9].src = "../images/common/menu_10.gif";
		
		img[10] = new Image(); img[10].src = "../images/common/menu_11.gif";
        img[11] = new Image(); img[11].src = "../images/common/menu_12.gif";

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