function OneClickButton_Click() {
    var src = typeof (event) != "undefined" ? event.srcElement : e.target;
    src.disabled = true;
    src.aspnet_onclick();
    src.disabled = typeof (Page_IsValid) != "undefined" ? Page_IsValid : true;
}

function OneClickButton_InitOnClick(id) {
    var sb = document.getElementById(id);
    sb.aspnet_onclick = sb.onclick;
    sb.onclick = OneClickButton_Click;
}