if(navigator.appVersion.charAt(0) >=3) {
        var img = new Array();
        img[0] = new Image();  img[0].src = "./image/kaisha_w.gif";
        img[1] = new Image();  img[1].src = "./image/kaisha_y.gif";
        img[2] = new Image();  img[2].src = "./image/seihin_w.gif";
        img[3] = new Image();  img[3].src = "./image/seihin_y.gif";
        img[4] = new Image();  img[4].src = "./image/kakaku_w.gif";
        img[5] = new Image();  img[5].src = "./image/kakaku_y.gif";
        img[6] = new Image();  img[6].src = "./image/jutaku_w.gif";
        img[7] = new Image();  img[7].src = "./image/jutaku_y.gif";
        img[8] = new Image();  img[8].src = "./image/mail_w.gif";
        img[9] = new Image();  img[9].src = "./image/mail_y.gif";
        img[10] = new Image();  img[10].src = "./image/link_w.gif";
        img[11] = new Image();  img[11].src = "./image/link_y.gif";
        img[12] = new Image();  img[12].src = "./image/home_w.gif";
        img[13] = new Image();  img[13].src = "./image/home_y.gif";
        img[14] = new Image();  img[14].src = "./image/toiawase_w.gif";
        img[15] = new Image();  img[15].src = "./image/toiawase_y.gif";
     
       
}       
 
function _in(nam,num) {
        if(navigator.appVersion.charAt(0) >=3) {
                document.images[nam].src = img[num].src;
        }
}
 
function _out(nam,num) {
 document.images[nam].src = img[num].src;
}