/* 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 = "/common_img_wr_co/img/navi_btn_product1.gif";
	navi_img[1] = new Image();  navi_img[1].src = "/common_img_wr_co/img/navi_btn_pro1.gif";
	navi_img[2] = new Image();  navi_img[2].src = "/common_img_wr_co/img/navi_btn_ent1.gif";
	navi_img[3] = new Image();  navi_img[3].src = "/common_img_wr_co/img/navi_btn_event1.gif";
	navi_img[4] = new Image();  navi_img[4].src = "/common_img_wr_co/img/navi_btn_company3.gif";
	navi_img[5] = new Image();  navi_img[5].src = "/common_img_wr_co/img/navi_btn_sup1.gif";
	navi_img[6] = new Image();  navi_img[6].src = "/common_img_wr_co/img/navi_btn_sitemap.gif";
	navi_img2[0] = new Image();  navi_img2[0].src = "/common_img_wr_co/img/navi_btn_product2.gif";
	navi_img2[1] = new Image();  navi_img2[1].src = "/common_img_wr_co/img/navi_btn_pro2.gif";
	navi_img2[2] = new Image();  navi_img2[2].src = "/common_img_wr_co/img/navi_btn_ent2.gif";
	navi_img2[3] = new Image();  navi_img2[3].src = "/common_img_wr_co/img/navi_btn_event2.gif";
	navi_img2[4] = new Image();  navi_img2[4].src = "/common_img_wr_co/img/navi_btn_company3.gif";
	navi_img2[5] = new Image();  navi_img2[5].src = "/common_img_wr_co/img/navi_btn_sup2.gif";
	navi_img2[6] = new Image();  navi_img2[6].src = "/common_img_wr_co/img/navi_btn_sitemap.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;
}