I have got a Strange Error Javascript. How to find out whot is a problem. Please help:
Here is my masterpage code:
<%@Master language="C#"%>
<%@ Register Tagprefix="SharePoint" Namespace="Microsoft.SharePoint.WebControls" Assembly="Microsoft.SharePoint, Version=15.0.0.0, Culture=neutral, PublicKeyToken=71e9bce111e9429c" %> <%@ Register Tagprefix="Utilities" Namespace="Microsoft.SharePoint.Utilities" Assembly="Microsoft.SharePoint, Version=15.0.0.0, Culture=neutral, PublicKeyToken=71e9bce111e9429c" %> <%@ Import Namespace="Microsoft.SharePoint" %> <%@ Assembly Name="Microsoft.Web.CommandUI, Version=15.0.0.0, Culture=neutral, PublicKeyToken=71e9bce111e9429c" %>
<%@ Import Namespace="Microsoft.SharePoint.ApplicationPages" %>
<%@ Register Tagprefix="WebPartPages" Namespace="Microsoft.SharePoint.WebPartPages" Assembly="Microsoft.SharePoint, Version=15.0.0.0, Culture=neutral, PublicKeyToken=71e9bce111e9429c" %>
<%@ Register TagPrefix="wssuc" TagName="Welcome" src="~/_controltemplates/15/Welcome.ascx" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<SharePoint:SPHtmlTag dir="<%$Resources:wss,multipages_direction_dir_value%>" ID="SPHtmlTag" runat="server" >
<head runat="server">
<meta name="GENERATOR" content="Microsoft SharePoint" />
<meta http-equiv="Content-type" content="text/html; charset=utf-8" />
<meta http-equiv="X-UA-Compatible" content="IE=10"/>
<meta http-equiv="Expires" content="0" />
<SharePoint:SPPinnedSiteTile runat="server" TileUrl="/_layouts/15/images/SharePointMetroAppTile.png" TileColor="#0072C6" />
<SharePoint:RobotsMetaTag runat="server"/>
<SharePoint:PageTitle runat="server">
<asp:ContentPlaceHolder id="PlaceHolderPageTitle" runat="server">
<SharePoint:ProjectProperty Property="Title" runat="server" />
</asp:ContentPlaceHolder>
</SharePoint:PageTitle>
<SharePoint:SPShortcutIcon runat="server" IconUrl="/_layouts/15/images/favicon.ico?rev=23" />
<SharePoint:StartScript runat="server" />
<SharePoint:CssLink runat="server" Version="15"/>
<SharePoint:CacheManifestLink runat="server"/>
<SharePoint:ScriptLink language="javascript" name="core.js" OnDemand="true" runat="server" Localizable="false" />
<SharePoint:ScriptLink language="javascript" name="menu.js" OnDemand="true" runat="server" Localizable="false" />
<SharePoint:ScriptLink language="javascript" name="callout.js" OnDemand="true" runat="server" Localizable="false" />
<SharePoint:ScriptLink language="javascript" name="sharing.js" OnDemand="true" runat="server" Localizable="false" />
<SharePoint:ScriptLink language="javascript" name="suitelinks.js" OnDemand="true" runat="server" Localizable="false" />
<SharePoint:CustomJSUrl runat="server" />
<SharePoint:SoapDiscoveryLink runat="server" />
<SharePoint:AjaxDelta id="DeltaPlaceHolderAdditionalPageHead" Container="false" runat="server">
<asp:ContentPlaceHolder id="PlaceHolderAdditionalPageHead" runat="server" />
<SharePoint:DelegateControl runat="server" ControlId="AdditionalPageHead" AllowMultipleControls="true" />
<asp:ContentPlaceHolder id="PlaceHolderBodyAreaClass" Visible="true" runat="server" />
</SharePoint:AjaxDelta>
<SharePoint:CssRegistration Name="Themable/corev15.css" runat="server" />
</head>
<body>
<SharePoint:ImageLink runat="server"/>
<SharePoint:SPNoScript runat="server"/>
<SharePoint:SPClientIDGenerator runat="server" ServerControlID="DeltaPlaceHolderMain;DeltaPlaceHolderPageTitleInTitleArea;DeltaPlaceHolderUtilityContent" />
<SharePoint:SharePointForm runat="server" onsubmit="if (typeof(_spFormOnSubmitWrapper) != 'undefined') {return _spFormOnSubmitWrapper();} else {return true;}">
<script type="text/javascript"> var submitHook = function () { return false; }; theForm._spOldSubmit = theForm.submit; theForm.submit = function () { if (!submitHook()) { this._spOldSubmit(); } }; </script>
<SharePoint:AjaxDelta id="DeltaSPWebPartManager" runat="server">
<WebPartPages:SPWebPartManager runat="Server"/>
</SharePoint:AjaxDelta>
<asp:ScriptManager id="ScriptManager" runat="server" EnablePageMethods="false" EnablePartialRendering="true" EnableScriptGlobalization="false" EnableScriptLocalization="true" />
<SharePoint:AjaxDelta id="DeltaDelegateControls" runat="server">
<SharePoint:DelegateControl runat="server" ControlId="GlobalNavigation" />
<SharePoint:DelegateControl ControlId="GlobalSiteLink3" Scope="Farm" runat="server" Visible="false" />
</SharePoint:AjaxDelta>
<div id="TurnOnAccessibility" style="display:none" class="s4-notdlg noindex">
<a id="linkTurnOnAcc" href="#" class="ms-accessible ms-acc-button" onclick="SetIsAccessibilityFeatureEnabled(true);UpdateAccessibilityUI();document.getElementById('linkTurnOffAcc').focus();return false;">
<SharePoint:EncodedLiteral runat="server" text="<%$Resources:wss,master_turnonaccessibility%>" EncodeMethod="HtmlEncode"/></a>
</div>
<div id="TurnOffAccessibility" style="display:none" class="s4-notdlg noindex">
<a id="linkTurnOffAcc" href="#" class="ms-accessible ms-acc-button" onclick="SetIsAccessibilityFeatureEnabled(false);UpdateAccessibilityUI();document.getElementById('linkTurnOnAcc').focus();return false;">
<SharePoint:EncodedLiteral runat="server" text="<%$Resources:wss,master_turnoffaccessibility%>" EncodeMethod="HtmlEncode"/></a>
</div>
<div class="s4-notdlg s4-skipribbonshortcut noindex">
<a href="javascript:;" onclick="document.getElementById('startNavigation').focus();" class="ms-accessible ms-acc-button" accesskey="<%$Resources:wss,skipribbon_accesskey%>" runat="server">
<SharePoint:EncodedLiteral runat="server" text="<%$Resources:wss,skipRibbonCommandsLink%>" EncodeMethod="HtmlEncode"/></a>
</div>
<div class="s4-notdlg noindex">
<a href="javascript:;" onclick="document.getElementById('mainContent').focus();" class="ms-accessible ms-acc-button" runat="server">
<SharePoint:EncodedLiteral runat="server" text="<%$Resources:wss,mainContentLink%>" EncodeMethod="HtmlEncode"/></a>
</div>
<div id="TurnOffAnimation" style="display:none;" class="s4-notdlg noindex">
<a id="linkTurnOffAnimation" href="#" class="ms-accessible ms-acc-button" onclick="ToggleAnimationStatus();return false;">
<SharePoint:EncodedLiteral runat="server" text="<%$Resources:wss,master_disableanimation%>" EncodeMethod="HtmlEncode"/></a>
</div>
<div id="TurnOnAnimation" style="display:none;" class="s4-notdlg noindex">
<a id="linkTurnOnAnimation" href="#" class="ms-accessible ms-acc-button" onclick="ToggleAnimationStatus();return false;">
<SharePoint:EncodedLiteral runat="server" text="<%$Resources:wss,master_enableanimation%>" EncodeMethod="HtmlEncode"/></a>
</div>
<a id="HiddenAnchor" href="javascript:;" style="display:none;"></a>
<div id="suiteBar" class="ms-dialogHidden noindex">
<div id="suiteBarLeft">
<div class="ms-table ms-fullWidth">
<div class="ms-tableRow">
<div class="ms-tableCell ms-verticalAlignMiddle">
<SharePoint:DelegateControl id="ID_SuiteBarBrandingDelegate" ControlId="SuiteBarBrandingDelegate" runat="server"/>
</div>
<SharePoint:AjaxDelta runat="server" id="DeltaSuiteLinks" BlockElement="true" CssClass="ms-core-deltaSuiteLinks">
<div id="suiteLinksBox">
<SharePoint:DelegateControl id="ID_SuiteLinksDelegate" ControlId="SuiteLinksDelegate" runat="server" />
</div>
</SharePoint:AjaxDelta>
</div>
</div>
</div>
<div id="suiteBarRight">
<SharePoint:AjaxDelta runat="server" id="DeltaSuiteBarRight" CssClass="ms-core-deltaSuiteBarRight" BlockElement="true">
<div id="welcomeMenuBox">
<wssuc:Welcome id="IdWelcome" runat="server" EnableViewState="false" />
</div>
<div id="suiteBarButtons">
<span class="ms-siteactions-root" id="siteactiontd">
<SharePoint:SiteActions runat="server" accesskey="<%$Resources:wss,tb_SiteActions_AK%>" id="SiteActionsMenuMain"
PrefixHtml=""
SuffixHtml=""
ImageUrl="/_layouts/15/images/spcommon.png?rev=23"
ThemeKey="spcommon"
MenuAlignment="Right"
MenuNotVisibleHtml="&nbsp;"
LargeIconMode="false"
>
<CustomTemplate>
<SharePoint:FeatureMenuTemplate runat="server"
FeatureScope="Site"
Location="Microsoft.SharePoint.StandardMenu"
GroupId="SiteActions"
UseShortId="true"
>
<SharePoint:MenuItemTemplate runat="server"
id="MenuItem_ShareThisSite"
Text="<%$Resources:wss,siteactions_sharethissite%>"
Description="<%$Resources:wss,siteactions_sharethissitedescription%>"
MenuGroupId="100"
Sequence="110"
UseShortId="true"
PermissionsString="ViewPages"
PermissionMode="Any" />
<SharePoint:MenuItemTemplate runat="server" id="MenuItem_EditPage"
Text="<%$Resources:wss,siteactions_editpage15%>"
Description="<%$Resources:wss,siteactions_editpagedescriptionv4%>"
ImageUrl="/_layouts/15/images/ActionsEditPage.png?rev=23"
MenuGroupId="200"
Sequence="210"
PermissionsString="EditListItems"
ClientOnClickNavigateUrl="javascript:ChangeLayoutMode(false);" />
<SharePoint:MenuItemTemplate runat="server" id="MenuItem_CreatePage"
Text="<%$Resources:wss,siteactions_addpage15%>"
Description="<%$Resources:wss,siteactions_createpagedesc%>"
ImageUrl="/_layouts/15/images/NewContentPageHH.png?rev=23"
MenuGroupId="200"
Sequence="220"
UseShortId="true"
ClientOnClickScriptContainingPrefixedUrl="OpenCreateWebPageDialog('~siteLayouts/createwebpage.aspx')"
PermissionsString="AddListItems, EditListItems"
PermissionMode="All" />
<SharePoint:MenuItemTemplate runat="server" id="MenuItem_Create"
Text="<%$Resources:wss,siteactions_addapp15%>"
Description="<%$Resources:wss,siteactions_createdesc%>"
MenuGroupId="200"
Sequence="230"
UseShortId="true"
ClientOnClickScriptContainingPrefixedUrl="GoToPage('~siteLayouts/addanapp.aspx')"
PermissionsString="ManageLists, ManageSubwebs"
PermissionMode="Any" />
<SharePoint:MenuItemTemplate runat="server" id="MenuItem_ViewAllSiteContents"
Text="<%$Resources:wss,quiklnch_allcontent_15%>"
Description="<%$Resources:wss,siteactions_allcontentdescription%>"
ImageUrl="/_layouts/15/images/allcontent32.png?rev=23"
MenuGroupId="200"
Sequence="240"
UseShortId="true"
ClientOnClickNavigateUrl="~siteLayouts/viewlsts.aspx"
PermissionsString="ViewFormPages"
PermissionMode="Any" />
<SharePoint:MenuItemTemplate runat="server" id="MenuItem_ChangeTheLook"
Text="<%$Resources:wss,siteactions_changethelook15%>"
Description="<%$Resources:wss,siteactions_changethelookdesc15%>"
MenuGroupId="300"
Sequence="310"
UseShortId="true"
ClientOnClickNavigateUrl="~siteLayouts/designgallery.aspx"
