Some JS Utility functions

jsUtility.js

var __sys = {};
var ua = navigator.userAgent.toLowerCase();
var s;
(s = ua.match(/msie ([\d.]+)/)) ? __sys.ie = s[1] :
        (s = ua.match(/firefox\/([\d.]+)/)) ? __sys.firefox = s[1] :
        (s = ua.match(/chrome\/([\d.]+)/)) ? __sys.chrome = s[1] :
        (s = ua.match(/opera.([\d.]+)/)) ? __sys.opera = s[1] :
        (s = ua.match(/version\/([\d.]+).*safari/)) ? __sys.safari = s[1] : 0;

function typeofUndefined(value) {
    return typeof (value) == "undefined" || value == null;
};

function typeofObject(value) {
    return typeof (value) == "object" && value.constructor == Object;
};

function typeofString(value) {
    return typeof (value) == "string" && value.constructor == String;
};

function typeofBoolean(value) {
    return typeof (value) == "boolean" && value.constructor == Boolean;
};

function typeofNumber(value) {
    return typeof (value) == "number" && value.constructor == Number;
};

function typeofFunction(value) {
    return typeof (value) == "function" && value.constructor == Function;
};

function typeofArray(value) {
    return typeof (value) == "object" && value.constructor == Array;
};

OptionManagement = function(options) {
    return function(name, defaultValue) {
        return (typeofUndefined(options) || typeofUndefined(options[name]) ? defaultValue : options[name]);
    };
};

function trim(value) {
    return value.toString().replace(/^\s+|\s+$/g, '');
};

function toNumber(value) {
    return Number(value);
};

function toBoolean(value) {
    return value.toString().toLowerCase() == "true" && value != "0";
};

function isNumeric(precision) {
    return new RegExp("^-?((\\d{1," + (precision ? precision.length - precision.scale : "") + "}((\\.\\d{0," + (precision ? precision.scale : "") + "})?)))$").test(this);
};

function isInteger(value) {
    return /^[0-9]{1,}$/.test(value);
};

function endsWith(value, ends, ignoreCase) {
    if (ignoreCase) {
        return value.toLowerCase().charAt(value.length - str.length) == str.toLowerCase();
    }

    return value.charAt(value.length - str.length) == str;
};

function startsWith(value, stats, ignoreCase) {
    if (ignoreCase) {
        return value.toLowerCase().charAt(0) == str.toLowerCase();
    }

    return value.charAt(0) == str;
};

function NaN0(value) {
    return isNaN(value) ? 0 : this;
};

function disableKeyboardEvent() {
    event.keyCode = 0;
}

function disableKeyboard() {
    bindEvent(document, "keydown", disableKeyboardEvent);
};

function enableKeyboard() {
    unbindEvent(document, "keydown", disableKeyboardEvent);
};

Date.parseDate = function(str, fmt) {
    var today = new Date();
    var y = 0;
    var m = -1;
    var d = 0;
    var a = str.split(/\W+/);
    var b = fmt.match(/%./g);
    var i = 0, j = 0;
    var hr = 0;
    var min = 0;
    for (i = 0; i < a.length; ++i) {
        if (!a[i])
            continue;
        switch (b[i]) {
            case "%d":
            case "%e":
                d = parseInt(a[i], 10);
                break;

            case "%m":
                m = parseInt(a[i], 10) - 1;
                break;

            case "%Y":
            case "%y":
                y = parseInt(a[i], 10);
                (y < 100) && (y += (y > 29) ? 1900 : 2000);
                break;

            case "%b":
            case "%B":
                for (j = 0; j < 12; ++j) {
                    if (Calendar._MN[j].substr(0, a[i].length).toLowerCase() == a[i].toLowerCase()) { m = j; break; }
                }
                break;

            case "%H":
            case "%I":
            case "%k":
            case "%l":
                hr = parseInt(a[i], 10);
                break;

            case "%P":
            case "%p":
                if (/pm/i.test(a[i]) && hr < 12)
                    hr += 12;
                else if (/am/i.test(a[i]) && hr >= 12)
                    hr -= 12;
                break;

            case "%M":
                min = parseInt(a[i], 10);
                break;
        }
    }
    if (isNaN(y)) y = today.getFullYear();
    if (isNaN(m)) m = today.getMonth();
    if (isNaN(d)) d = today.getDate();
    if (isNaN(hr)) hr = today.getHours();
    if (isNaN(min)) min = today.getMinutes();
    if (y != 0 && m != -1 && d != 0)
        return new Date(y, m, d, hr, min, 0);
    y = 0; m = -1; d = 0;
    for (i = 0; i < a.length; ++i) {
        if (a[i].search(/[a-zA-Z]+/) != -1) {
            var t = -1;
            for (j = 0; j < 12; ++j) {
                if (Calendar._MN[j].substr(0, a[i].length).toLowerCase() == a[i].toLowerCase()) { t = j; break; }
            }
            if (t != -1) {
                if (m != -1) {
                    d = m + 1;
                }
                m = t;
            }
        } else if (parseInt(a[i], 10) <= 12 && m == -1) {
            m = a[i] - 1;
        } else if (parseInt(a[i], 10) > 31 && y == 0) {
            y = parseInt(a[i], 10);
            (y < 100) && (y += (y > 29) ? 1900 : 2000);
        } else if (d == 0) {
            d = a[i];
        }
    }
    if (y == 0)
        y = today.getFullYear();
    if (m != -1 && d != 0)
        return new Date(y, m, d, hr, min, 0);
    return today;
};

Date.prototype.getMonthDays = function(month) {
    var year = this.getFullYear();
    if (typeof month == "undefined") {
        month = this.getMonth();
    }
    if (((0 == (year % 4)) && ((0 != (year % 100)) || (0 == (year % 400)))) && month == 1) {
        return 29;
    } else {
        return Date._MD[month];
    }
};

Date.prototype.getDayOfYear = function() {
    var now = new Date(this.getFullYear(), this.getMonth(), this.getDate(), 0, 0, 0);
    var then = new Date(this.getFullYear(), 0, 0, 0, 0, 0);
    var time = now - then;
    return Math.floor(time / Date.DAY);
};

Date.prototype.getWeekNumber = function() {
    var d = new Date(this.getFullYear(), this.getMonth(), this.getDate(), 0, 0, 0);
    var DoW = d.getDay();
    d.setDate(d.getDate() - (DoW + 6) % 7 + 3);
    var ms = d.valueOf();
    d.setMonth(0);
    d.setDate(4);
    return Math.round((ms - d.valueOf()) / (7 * 864e5)) + 1;
};

Date.prototype.equalsTo = function(date) {
    return ((this.getFullYear() == date.getFullYear()) &&
		(this.getMonth() == date.getMonth()) &&
		(this.getDate() == date.getDate()) &&
		(this.getHours() == date.getHours()) &&
		(this.getMinutes() == date.getMinutes()));
};

function createElement(options, document) {
    var element = null;

    if (typeof (document) == "undefined" || document == null) {
        document = window.document;
    }

    if (document.createElementNS) {
        element = document.createElementNS("http://www.w3.org/1999/xhtml", options.tagName);
    }
    else {
        element = document.createElement(options.tagName);
    }

    for (var name in options) {
        try {
            switch (name) {
                case "tagName":
                    continue;
                case "style":
                    var style = options[name];
                    for (var styleName in style) {
                        element.style[styleName] = style[styleName];
                    }
                    break;
                case "parent":
                    options[name].appendChild(element);
                    break;
                default:
                    element[name] = options[name];
                    break;
            }
        }
        catch (e) { }
    }

    return element;
};

var $zIndex = 10000;

var $getZIndex = function() {
    return $zIndex++;
};

function showDialog(dialog, document) {
    if (dialog.style.display == "none") {
        if (typeof (document) == "undefined" || document == null) {
            document = window.document;
        }

        var overlayId = "$_dialog_overlay";
        var overlay = document.getElementById(overlayId);

        if (typeof (overlay) == "undefined" || overlay == null) {
            overlay = createElement(
                {
                    tagName: "iframe",
                    id: overlayId,
                    frameBorder: "0",
                    scrolling: "no",
                    allowTransparency: "true",
                    style: {
                        top: "0px",
                        left: "0px",
                        position: "absolute",
                        filter: "alpha(opacity=100); -moz-opacity:1.0",
                        zIndex: $getZIndex()
                    },
                    width: document.body.scrollWidth,
                    height: document.body.scrollHeight,
                    parent: document.body
                },
                document
            );
        }

        overlay.document.body.bgColor = "#dddddd";
        dialog.overlay = overlay;
        dialog.style.zIndex = $getZIndex();
        dialog.style.position = "absolute";
        dialog.style.top = ((document.documentElement.clientHeight - dialog.offsetHeight) / 2 + document.documentElement.scrollTop) + "px";
        dialog.style.left = ((document.documentElement.clientWidth - dialog.offsetWidth) / 2 + document.documentElement.scrollLeft) + "px";
        overlay.style.display = "";
        dialog.style.display = "";
    }
};

function hideDialog(dialog) {
    dialog.overlay.style.display = "none";
    dialog.style.display = "none";
}

function $setInputValue(element, value) {
    element.hasChanged = false;
    element.originalValue = value;
    switch (element.type) {
        case "hidden":
        case "text":
        case "textarea":
        case "select-one":
        case "button":
            element.value = value;
            break;
        case "checkbox":
            element.checked = value != "0";
            element.value = value;
            break;
        case "radio":
            element.checked = value != "0";
            element.value = value;
            break;
            break;
        case "select-multiple":
            for (var i = 0; i < element.length; i++) {
                if (trim(element[i].value) == trim(value)) {
                    element[i].selected = true;
                }
            }
            break;
        default:
            throw "element not input";
            break;
    }
};

function $getInputValue(element) {
    switch (element.type) {
        case "hidden":
        case "text":
        case "textarea":
        case "checkbox":
        case "radio":
        case "select-one":
            return trim(element.value);
        case "select-multiple":
            var values = [];
            for (var i = 0; i < element.length; i++) {
                if (element[i].selected) {
                    values.push(trim(element[i].value));
                }
            }
            return values;
    }
};

function $setValue(element, value, html) {
    value = trim(value.toString());
    switch (element.tagName) {
        case "INPUT":
        case "TEXTAREA":
            $setInputValue(element, value);
            break;
        default:
            if (html) {
                element.innerHTML = value;
            }
            else {
                element.innerText = value;
            }
            break;
    }
};

function $getValue(element, html) {
    switch (element.tagName) {
        case "INPUT":
        case "TEXTAREA":
            return $getInputValue(element);
        default:
            if (html) {
                return element.innerHTML;
            }

            return element.innerText;
    }
};

function $setValueById(id, value, html) {
    $setValue($id(id), value, html);
};

function $getValueById(id, value, html) {
    $getValue($id(id), value, html);
};

function $id(id) {
    var element = null;

    if (typeofUndefined(id)) {
        return null;
    }

    element = document.getElementById(id);

    if (typeofUndefined(element.setValue)) {
        element.setValue = function(value, html) {
            $setValue(element, value, html);
        };
    }

    if (typeofUndefined(element.getValue)) {
        element.getValue = function(html) {
            $getValue(element, html);
        };
    }

    return element;
};

function $name(name) {
    if (name) {
        return document.getElementsByName(name);
    }

    return [];
};

function $tag(tagName, parent) {
    if (tagName) {
        if (parent) {
            return parent.getElementsByTagName(tagName);
        }

        return document.getElementsByTagName(tagName);
    }

    return [];
};

$forms = {};

function $form(id) {
    var form = $forms[id];

    if (typeofUndefined(form)) {
        form = $id(id);
        $forms[id] = form;
    }

    return form;
};

function bindEvent(target, name, handler) {
    if (target.addEventListener) {
        target.addEventListener(name, handler, false);
    }
    else if (target.attachEvent) {
        target.attachEvent("on" + name, handler);
    }
    else {
        target["on" + name] = handler;
    }
};

function unbindEvent(target, name, handler) {
    if (target.removeEventListener) {
        target.removeEventListener(name, handler, false);
    }
    else if (target.detachEvent) {
        target.detachEvent("on" + name, handler);
    }
    else {
        target["on" + name] = null;
    }
};

function toHtmlEncode(value) {
    var tmp = createElement({ tagName: "div", cssText: "display: none" });
    tmp.innerText = value;
    var result = tmp.innerHTML;
    //document.removeChild(tmp);

    return result;
};

function generateRandom() {
    var date = new Date();

    return date.getFullYear().toString() + date.getMonth().toString() + date.getDay().toString()
        + date.getHours().toString() + date.getMinutes().toString() + date.getSeconds().toString()
        + date.getMilliseconds().toString()
};

function loadForms() {
    for (var i = 0; i < document.forms.length; i++) {
        var form = document.forms[i];
        $forms[form.id] = form;
    }
};

bindEvent(window, "load", loadForms);

Message = function(options) {
    var option = new OptionManagement(options);

    this.refId = option.get("refId", "message");
    this.id = this.refId + "__$__Message";
    this.text = option.get("text", "");
    this.cssText = option.get("cssText", "");
    this.color = option.get("color", "#ff0000");
    this.position = option.get("position", 2);
    this.focus = option.get("focus", true);
    this.display = option.get("display", "inline");
    this.wrap = option.get("wrap", true);
    this.onshow = option.get("onshow", null);
};

Message.prototype.getMessage = function() {
    var message = Page.$id(this.id);

    if (!message) {
        var message = document.createElement("span");
        message.id = this.id;
    }

    if (message.innerText.length == 0) {
        message.innerText = this.text;
    }
    else if (message.innerText.indexOf(this.text) < 0) {
        message.innerText += (this.wrap ? "\r\n" : "") + this.text;
    }

    if (this.cssText) {
        message.style.cssText = this.cssText;
    }
    if (this.color) {
        message.style.color = this.color;
    }
    else {
        message.style.color = "#ff0000";
    }

    return message;
};

Message.prototype.show = function() {
    if (this.text.length > 0) {
        var ref = $id(this.refId);
        if (ref) {
            var message = this.getMessage();
            switch (this.position) {
                case 1:
                    ref.parentNode.insertBefore(message, ref);
                    break;
                case 2:
                    ref.appendChild(message);
                    break;
                case 3:
                    if (ref.nextSibling) {
                        ref.parentNode.insertBefore(message, ref.nextSibling);
                    }
                    else {
                        ref.parentNode.appendChild(message);
                    }
                    break;
            }

            if (this.focus) {
                try {
                    ref.focus();
                }
                catch (ex) { }
            }

            message.style.display = this.display;
            if (this.onshow) {
                this.onshow(this);
            }
        }
    }
};

Message.prototype.hide = function() {
    var message = $id(this.id);
    if (message) {
        message.innerHTML = "";
        message.style.display = "none";
    }
};

Message.pool = {};

Message.show = function(parameters) {
    var message = new Message(parameters);
    Message.pool[message.id] = message;
    message.show();
};

Message.hide = function(id) {
    if (id && Message.pool[id]) {
        Message.pool[id].hide();
    }
    else {
        for (var name in Message.pool) {
            Message.pool[name].hide();
        }
    }
};

Idle = function(parameters) {
    var parameter = new Parameter(parameters);

    this.handler = -1;
    this.once = true;
    this.duration = parameter("duration", 30000);
    this.listening = parameter("listening", null);
    this.idle = parameter("idle", null);
    this.params = parameter("params", null);
};

Idle.prototype.start = function() {
    var self = this;
    if (self.duration > 0) {
        if (this.once) {
            self.handler = setTimeout(function() { self.listening(self); }, self.duration);
        }
        else {
            self.handler = setInterval(function() { self.listening(self); }, self.duration);
        }
        if (this.idle) {
            this.idle.start();
        }
    }
};

Idle.prototype.restart = function() {
    this.stop();
    this.start();

    if (this.idle) {
        this.idle.restart();
    }
};

Idle.prototype.stop = function() {
    if (this.idle) {
        this.idle.stop();
    }

    clearTimeout(this.handler);
};