//image event ----------------------------------

var btnimg_ov = new Array();
var btnimg_ou = new Array();

btnimg_ou[1] = new Image();  btnimg_ou[1].src = "/products/img/btn_kounyu.gif";
btnimg_ou[2] = new Image();  btnimg_ou[2].src = "/products/present/img/btn_oubo.gif";

btnimg_ov[1] = new Image();  btnimg_ov[1].src = "/products/img/btn_kounyu-ov.gif";
btnimg_ov[2] = new Image();  btnimg_ov[2].src = "/products/present/img/btn_oubo-ov.gif";


function chgBtn(nam,eve,num) {
if(navigator.appVersion.charAt(0) >= 3) {
	document.images[nam].src = eval("btnimg_"+eve+"[num].src");

}
}