/* 画像プリロード */
if (navigator.appVersion.charAt(0) >= 3) {
	var navi_img = new Array();
	var navi_img2 = new Array();
	navi_img[0] = new Image();  navi_img[0].src = "/english/img/copy_of_btn-corporate.gif";
	navi_img[1] = new Image();  navi_img[1].src = "/english/img/copy_of_btn-press.gif";
	navi_img[2] = new Image();  navi_img[2].src = "/english/img/copy_of_btn-ir.gif";
	navi_img[3] = new Image();  navi_img[3].src = "/english/img/copy_of_btn-cultural.gif";
	navi_img[4] = new Image();  navi_img[4].src = "/english/img/copy_of_btn-support.gif";
	navi_img[5] = new Image();  navi_img[5].src = "/english/img/copy_of_btn-sitemap-s.gif";
	navi_img2[0] = new Image();  navi_img2[0].src = "/english/img/copy_of_btn-corporate-p.gif";
	navi_img2[1] = new Image();  navi_img2[1].src = "/english/img/copy_of_btn-press-p.gif";
	navi_img2[2] = new Image();  navi_img2[2].src = "/english/img/copy_of_btn-ir-p.gif";
	navi_img2[3] = new Image();  navi_img2[3].src = "/english/img/copy_of_btn-cultural-p.gif";
	navi_img2[4] = new Image();  navi_img2[4].src = "/english/img/copy_of_btn-support-p.gif";
	navi_img2[5] = new Image();  navi_img2[5].src = "/english/img/copy_of_btn-sitemap-s.gif";
}
function r_over(name,num) {
	document.images[name].src = navi_img2[num].src;
}
function r_out(name,num) {
	document.images[name].src = navi_img[num].src;
}