imgREQon = new Image(96,28);
imgREQon.src = "../../img/ico_seikyu_on.gif";
imgREQoff = new Image(96,28);
imgREQoff.src = "../../img/ico_seikyu_off.gif";

function imgon(imgname) {
        document[imgname].src = eval(imgname + "on.src");
}
function imgoff(imgname) {
        document[imgname].src = eval(imgname + "off.src");
}