// Function retrieved from: http://cass-hacks.com/articles/code/js_url_encode_decode/
function URLEncode(clearString) {
    var output = '';
    var x = 0;
    clearString = clearString.toString();
    var regex = /(^[a-zA-Z0-9_.]*)/;
    while (x < clearString.length) {
        var match = regex.exec(clearString.substr(x));
        if (match != null && match.length > 1 && match[1] != '') {
            output += match[1];
            x += match[1].length;
        }
        else {
            if (clearString[x] == ' ')
                output += '+';
            else {
                var charCode = clearString.charCodeAt(x);
                var hexVal = charCode.toString(16);
                output += '%' + (hexVal.length < 2 ? '0' : '') + hexVal.toUpperCase();
            }
            x++;
        }
    }
    return output;
}
// Retrieved from: http://www.htmlcodetutorial.com/forms/index_famsupp_157.html
function SubmitOnEnter(myfield, e, hostID) {
    var keycode;
    if (window.event)
        keycode = window.event.keyCode;
    else if (e)
        keycode = e.which;
    else
        return true;

    if (keycode == 13 && myfield.value != "") {
        SearchSite(hostID);
        return false;
    }
    else if (keycode == 13 && myfield.value == "") {
        return false;
    }
    else
        return true;
}

//Left Trim
function ltrim(s) {
    return s.replace(/^\s*/, "");
}