function checkForEnterKey(e, keywordsID, subfolder)
{
    var retVal = true;
    var keycode = 0;
    if ((typeof(e) != "undefined") && (e != null))
    {
        if ((typeof(e.keyCode) != "undefined") && (e.keyCode != null))
        {
            keycode = e.keyCode;
        }
        else if ((typeof(e.which) != "undefined") && (e.which != null))
        {
            keycode = e.which;
        }
        else if ((typeof(e.charCode) != "undefined") && (e.charCode != null))
        {
            keycode = e.charCode;
        }
    }
    if (keycode == 13)
    {
        doSearch(keywordsID, subfolder);
        retVal = false;
    }
    return retVal;
}

function doSearch(keywordsID, subfolder)
{
    var keywordsTextbox = document.getElementById(keywordsID);
    if (keywordsTextbox != null)
    {
        var keywords = keywordsTextbox.value;
        if (keywords.length > 0)
        {
            var siteToSearch = "+%28site%3Ahttp%3A%2F%2Fwww.microsoft.com%2Fweb";
            if ((typeof(subfolder) != "undefined") && (subfolder != ""))
            {
                siteToSearch += "%2F" + escape(subfolder);
            }
            siteToSearch += "%29";
            var q = "q=" + escape(keywords) + siteToSearch;

            var url = "http://www.bing.com/search?" + q;
            window.location.href = url;
        }
    }
}