function SingleClickButton_Click(e) {
    if (window.event) e = window.event;
    var src = e.srcElement ? e.srcElement : e.target;
    src.disabled = true;
    src.aspnet_onclick();
    src.disabled = typeof (Page_IsValid) != "undefined" ? Page_IsValid : true;
}
function SingleClickButton_InitOnClick(id) {
    var sb = document.getElementById(id);
    sb.aspnet_onclick = sb.onclick;
    sb.onclick = SingleClickButton_Click;
}