bName = navigator.appName;
bVer = parseInt(navigator.appVersion);
if ((bName == "Netscape" && bVer >= 3) ||
        (bName == "Microsoft Internet Explorer" && bVer >=4)) br = "n3";
else br = "n2";
if (br== "n3") {
        img01on = new Image();
        img01on.src = "button/ketentuan1.gif";
        img02on = new Image();
        img02on.src = "button/form1.gif";
	img03on = new Image();
        img03on.src = "button/realisasi1.gif";
	img04on = new Image();
        img04on.src = "button/email1.gif";

        img01off = new Image();
        img01off.src = "button/ketentuan.gif";
        img02off = new Image();
        img02off.src = "button/form.gif";
        img03off = new Image();
        img03off.src = "button/realisasi.gif";
        img04off = new Image();
        img04off.src = "button/email.gif";
}

function imgAct(imgName) {
        if (br == "n3") {
                document[imgName].src = eval(imgName + "on.src");
        }
}

function imgInact(imgName) {
        if (br == "n3") {
                document[imgName].src = eval(imgName + "off.src");
        }
}