function showControl(ctlname, flag) {
    var ctl = document.getElementById(ctlname);

    if (ctl == null) return;

    ctl.style.display = flag ? "block" : "none";
}


function searchDirectory(page, keywordctlname)
{
    var ctl = document.getElementById(keywordctlname);
    
    if(ctl == null)
        return;
            
    window.location = page + "?searchkeyword=" + ctl.value;
}