function seta(i) {
    selecta(i);
}

function selecta(i) {
    switch (i) {
        case 1:
            document.getElementById("idul").style.backgroundImage = "url(images/1.gif)";
            document.getElementById("idsear").style.display = "block";
            document.getElementById("idpro").style.display = "none";
            document.getElementById("idcount").style.display = "none";
            break;
        case 2:
            document.getElementById("idul").style.backgroundImage = "url(images/2.gif)";
            document.getElementById("idsear").style.display = "none";
            document.getElementById("idpro").style.display = "block";
            document.getElementById("idcount").style.display = "none";
            break;
        case 3:
            document.getElementById("idul").style.backgroundImage = "url(images/3.gif)";
            document.getElementById("idsear").style.display = "none";
            document.getElementById("idpro").style.display = "none";
            document.getElementById("idcount").style.display = "block";
            break;
    }
}