var isIE = false;
var isOpera = false;
var isMozilla = false;
var isSafari = false;
var isKonq = false;

function CheckBrowserVersion() {
    sUserAgent = navigator.userAgent;
    isOpera = sUserAgent.indexOf("Opera") > -1;
    isIE = sUserAgent.indexOf("compatible") > -1 &&
         sUserAgent.indexOf("MSIE") > -1 &&
         !isOpera;
    isKHTML = sUserAgent.indexOf("KHTML") > -1 &&
            sUserAgent.indexOf("AppleWebKit") > -1;
    if (isKHTML) {
        isSafari = sUserAgent.indexOf("AppleWebKit") > -1;
        isKonq = sUserAgent.indexOf("Konqueror") > -1;
    }
    isMozilla = sUserAgent.indexOf("Gecko") > -1 &&
              !isKHTML;
}
CheckBrowserVersion();

function attachEventToElement(eventElement, eventName, eventFunction) {
    if (isIE) {
        eventElement.attachEvent("on" + eventName, eventFunction);
    }
    else {
        eventElement.addEventListener(eventName, eventFunction, true);
    }
}

function getDocumentBodyElement() {
    if (isIE || isMozilla) {
        return document.documentElement;
    }
    else if (isOpera) {
        return document.body;
    }
    else {
        if (document.documentElement) {
            return document.documentElement;
        }
        else if (document.body) {
            return document.body;
        }
    }
    return null;
}

function getCurrStyle(defObj) {
    if (defObj) {
        if (defObj.currentStyle) {
            return defObj.currentStyle;
        }
        else if (window.getComputedStyle) {
            return document.defaultView.getComputedStyle(defObj, null);
        }
    }
    return null;
}
function getCurrStyleValue(defObj, IEstyleProp, MozStyleProp) {
    if (defObj.currentStyle) {
        return defObj.currentStyle[IEstyleProp];
    }
    else if (window.getComputedStyle) {
        return document.defaultView.getComputedStyle(defObj, null).getPropertyValue(MozStyleProp);
    }
    return null;
}
function getCurrStyleFloat(defObj) {
    if (defObj) {
        if (defObj.currentStyle) {
            return defObj.currentStyle.styleFloat;
        }
        else if (window.getComputedStyle) {
            return document.defaultView.getComputedStyle(defObj, null).cssFloat;
        }
    }
    return null;
}
function getStyleFloat(defObj) {
    if (defObj) {
        if (defObj.style.styleFloat || (defObj.style.styleFloat == "")) {
            return defObj.style.styleFloat;
        }
        else if (defObj.style.cssFloat || (defObj.style.cssFloat == "")) {
            return defObj.style.cssFloat;
        }
    }
    return null;
}
function setStyleFloat(defObj, value) {
    if (defObj) {
        if (defObj.style.styleFloat || (defObj.style.styleFloat == "")) {
            defObj.style.styleFloat = value;
        }
        else if (defObj.style.cssFloat || (defObj.style.cssFloat == "")) {
            defObj.style.cssFloat = value;
        }
    }
}

function getDimensions(defObj) {
    if (defObj.style.display != 'none' && defObj.style.display != null) // Safari bug
        return { width: defObj.offsetWidth, height: defObj.offsetHeight };

    return { width: defObj.clientWidth, height: defObj.clientHeight };
}


function YesNoCancelMsgBox(question) {
    if (isIE || window.VBYesNoCancelMsgBox) {
        return VBYesNoCancelMsgBox(question);
    }
    else {
        return confirm(question) ? 6 : 7;
    }
}

function YesNoMsgBox(question) {
    if (isIE || window.VBYesNoMsgBox) {
        return VBYesNoMsgBox(question);
    }
    else {
        return confirm(question) ? 6 : 7;
    }
}

function YesNoWarrningMsgBox(question) {
    if (isIE || window.VBYesNoWarrningMsgBox) {
        return VBYesNoWarrningMsgBox(question);
    }
    else {
        return confirm(question) ? 6 : 7;
    }
}

function OKInformationMsgBox(infoText) {
    if (isIE || window.VBOKInformationMsgBox) {
        VBOKInformationMsgBox(infoText);
    }
    else {
        alert(infoText);
    }
}

function isLeftButtonClick(ev) {
    if (isIE) {
        return ev.button == 1;
    }
    else {
        return ev.button == 0;
    }
}

function isRightButtonClick(ev) {
    return ev.button == 2;
}

function IsAppPath(path) {
    return window.location.href.substr(0, window.location.href.length - 'default.aspx'.length) == file.href;
}

function GetRelativePath(path)
{
    prefix = window.location.href.substr(0, location.href.length - location.pathname.length - location.search.length);
    if (path.indexOf(prefix) >= 0) {
        return path.substr(prefix.length, path.length - prefix.length);
    }
    else {
        return path;
    }
}
function RefreshLabel4Disable(controlID, isFormDisabled) {
    // its necessary to refresh label because on show property page
    // (disable current page) label duplicate text
    control = document.getElementById(controlID);
    if (control) {
        if (isFormDisabled) {
            control.style.visibility = 'visible';
        }
        else {
            control.style.visibility = '';
        }
    }
}

function SetSelectControlsVisible(parentControl, value) {
    // value - 'hidden', 'visible'
    for (var i = 0; i < parentControl.childNodes.length; i++) {
        if (parentControl.childNodes[i].tagName &&
	       (parentControl.childNodes[i].tagName.toLowerCase() == 'select')) {
            parentControl.childNodes[i].style.visibility = value;
        }
        SetSelectControlsVisible(parentControl.childNodes[i], value);
    }
}
function HideSelectControls(parentControlID) {
    parentControl = document.getElementById(parentControlID);
    if (parentControl) {
        SetSelectControlsVisible(parentControl, 'hidden');
    }
}
function ShowSelectControls(parentControlID) {
    parentControl = document.getElementById(parentControlID);
    if (parentControl) {
        SetSelectControlsVisible(parentControl, 'visible');
    }
}

function ConvertStringToBool(strValue) {
    if (strValue && (strValue == 't')) {
        return true;
    }
    else {
        return false;
    }
}

function setDiabledAllElements(parentElement, isDisabled) {
    if ((parentElement.disabled != null) &&
      (parentElement.disabled != undefined)) {
        parentElement.disabled = isDisabled;
    }
    if (parentElement.childNodes) {
        for (var i = 0; i < parentElement.childNodes.length; i++) {
            setDiabledAllElements(parentElement.childNodes[i], isDisabled)
        }
    }
}

function ToggleAdvancedSearch(panelID, categoriesID, brandsID, inStockID) {
    var panel = document.getElementById(panelID);
    var categoriesDrop = document.getElementById(categoriesID);
    var brandsDrop = document.getElementById(brandsID);
    var inStockCheck = document.getElementById(inStockID);
    if (panel) {
        if (isControlVisible(panel)) // hide + reset filters
        {
            panel.style.display = 'none';
            if (categoriesDrop)
                categoriesDrop.selectedIndex = 0;
            if (brandsDrop)
                brandsDrop.selectedIndex = 0;
            if (inStockCheck)
                inStockCheck.checked = false;
        }
        else // show
        {
            panel.style.display = 'block';
        }
    }
    return false;
}

function ToggleControlVisiblity(controlID) {
    var control = document.getElementById(controlID);
    if (control) {
        control.style.display = isControlVisible(control) ? 'none' : 'block';
    }
    return false;
}

function isControlVisible(control) {
    if (control.style.display == 'none')
        return false;
    else
        return true;
}

function setControlVisible(control, visible)
{
    control.style.display = visible ? 'block': 'none';
}

// workaround for radio buttons in repeater
function SetUniqueRadioButton(nameregex, current) {
    re = new RegExp(nameregex);
    for (i = 0; i < document.forms[0].elements.length; i++) {
        elm = document.forms[0].elements[i];
        if (elm.type == 'radio') {
            if (re.test(elm.name)) {
                elm.checked = false;
            }
        }
    }
    current.checked = true;
}

function CountLeftChars(textBox, infoLabelID) {
    var infoLabel = document.getElementById(infoLabelID);

    if ((textBox == null) || (infoLabel == null))
        return;

    var maxChars = getMaxCount(textBox);
    var leftChars = maxChars - textBox.value.length;
    if (leftChars > 0) {
        infoLabel.className = 'cmsPropertyLeftInfoLabel';
    }
    else {
        infoLabel.className = 'cmsPropertyToLongInfoLabel';
        leftChars = 0;
    }
    infoLabel.innerHTML = GetResourceText('PropertyInfoCharsLeft', leftChars);
}

function CountLeftWords(textBox, infoLabelID) {
    var infoLabel = document.getElementById(infoLabelID);

    if ((textBox == null) || (infoLabel == null))
        return;


    var wordsCount = 0;
    if (textBox.value.length > 0) {
        var wordsArr = textBox.value.split(', ');
        wordsCount = textBox.value.split(', ').length;
    }

    var maxWords = getMaxCount(textBox);
    var leftWords = maxWords - wordsCount;
    if (leftWords > 0) {
        infoLabel.className = 'cmsPropertyLeftInfoLabel';
    }
    else {
        infoLabel.className = 'cmsPropertyToLongInfoLabel';
        leftWords = 0;
    }
    infoLabel.innerHTML = GetResourceText('PropertyInfoWordsLeft', leftWords);
}

function getMaxCount(textBox) {
    var maxWordsStr = textBox.getAttribute('maxCount');
    if (maxWordsStr)
        return parseInt(maxWordsStr);
    else
        return 10;
}

function deleteTagFromPage(item, tagID, fieldIDs) {
    item.style.display = 'none';

    if (fieldIDs.value != '')
        fieldIDs.value = fieldIDs.value + ',';

    fieldIDs.value = fieldIDs.value + tagID;
}

function WebForm_FireDefaultButton(event, target) {
    if (event.keyCode == 13 && !(event.srcElement && (event.srcElement.tagName.toLowerCase() == "textarea"))) {
        var defaultButton;
        defaultButton = document.getElementById(target);
        if (defaultButton && typeof (defaultButton.click) != "undefined") {
            defaultButton.click();
            event.cancelBubble = true;
            if (event.stopPropagation)
                event.stopPropagation();
            return false;
        }
    }
    return true;
}

function CMSOverlayLabel(inputControlClientID, labelControlClientID)
{
    this.inputControl = document.getElementById(inputControlClientID);
    this.labelControl = document.getElementById(labelControlClientID);

    this.hideLabel = function(event)
    {
        event = event || window.event;
        var eventTarget = event.target || event.srcElement;
        if (!eventTarget || !eventTarget.overlayObject) return;

        eventTarget.overlayObject.labelControl.style.display = 'none';
        eventTarget.overlayObject.inputControl.focus();
    };

    this.showLabel = function(event)
    {
        event = event || window.event;
        var eventTarget = event.target || event.srcElement;
        if (!eventTarget || !eventTarget.overlayObject) return;

        if (eventTarget.overlayObject.inputControl.value.length <= '0')
        {
            eventTarget.overlayObject.labelControl.style.display = '';
        }
    };

    ///////////////////////////////////////////////////////////////////////////////////
    // Initialization
    this.Init = function()
    {
        if (!this.labelControl || !this.inputControl) return;

        this.labelControl.overlayObject = this;
        this.inputControl.overlayObject = this;

        var imputControlDim = getDimensions(this.inputControl);
        this.labelControl.style.height = imputControlDim.height + 'px';
        this.labelControl.style.width = imputControlDim.width + 'px';
        this.labelControl.style.position = 'absolute';
        /*imputControlDim.height = 0 in calendar.aspx*/
        //this.labelControl.style.lineHeight = imputControlDim.height + 'px';
        //this.labelControl.style.textAlign = 'center';

        if ((this.inputControl.disabled == null) || (this.inputControl.disabled == undefined) ||
            !this.inputControl.disabled)
        {
            attachEventToElement(this.labelControl, 'click', this.hideLabel);
            attachEventToElement(this.inputControl, 'focus', this.hideLabel);
            attachEventToElement(this.inputControl, 'blur', this.showLabel);
        }

        if (this.inputControl.value.length <= '0')
        {
            this.labelControl.style.display = '';
        }
        else
        {
            this.labelControl.style.display = 'none';
        }
    }
    this.Init();
}

// functions for priority drop downs

function priorityDropDownChange(dropDown, textBoxID)
{
    var textBox = document.getElementById(textBoxID);
    if (dropDown && textBox)
        setPriorityTextBoxVisible(textBox, dropDown);
}

function setPriorityTextBoxVisible(textBox, dropDown)
{
    if (!textBox || !dropDown)
        return;

    if ((dropDown.selectedIndex >= 0)
        && ((dropDown.options[dropDown.selectedIndex].value.toLowerCase() == 'user')
            || (dropDown.options[dropDown.selectedIndex].value.toLowerCase() == '-2')))
    {
        setControlVisible(textBox, true);
    }
    else
    {
        if (dropDown.selectedIndex >= 0)
            textBox.value = dropDown.options[dropDown.selectedIndex].text;
        else
            textBox.value = '';
        setControlVisible(textBox, false);
    }
}