Javascript Error after insert a Webpart into Page

Question

Hi everone, have you ever experienced getting error just after inserting a Webpart into page? I'm using Sharepoint Server 2013. These steps what I did:
1. Create new page
2. Click 'Add Webpart'
3. Choose the webpart and click OK
4. Webpart showed on page (simple table form)
5. All ribbon controls are disable and there is javascript error on browser's console with message:
SCRIPT1004: Expected ';' 
Picture: http://i(dot)imgur(dot)com/UBM91b3(dot)png
That line is not from my codes, it's automatically added by sharepoint after inserting webpart. Thanks for anyone who has workaround for this..
<%@ Assembly Name="$SharePoint.Project.AssemblyFullName$" %>
<%@ Assembly Name="Microsoft.Web.CommandUI, Version=15.0.0.0, Culture=neutral, PublicKeyToken=71e9bce111e9429c" %>
<%@ 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" %>
<%@ Register Tagprefix="asp" Namespace="System.Web.UI" Assembly="System.Web.Extensions, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" %>
<%@ Import Namespace="Microsoft.SharePoint" %>
<%@ Register Tagprefix="WebPartPages" Namespace="Microsoft.SharePoint.WebPartPages" Assembly="Microsoft.SharePoint, Version=15.0.0.0, Culture=neutral, PublicKeyToken=71e9bce111e9429c" %>
<%@ Control Language="C#" AutoEventWireup="true" CodeBehind="ContractReviewWP.ascx.cs" Inherits="Mitrais.SP2013.ContractManagement.WebParts.ContractReviewWP.ContractReviewWP" %>
<script type="text/javascript">
$(function () {
Sys.WebForms.PageRequestManager.getInstance().add_pageLoaded(function (evt, args) {
//datepicker
$(".datePicker").datepicker();
</script>
<div id="divMain">
<asp:UpdatePanel ID="upContract" runat="server" UpdateMode="Conditional">
<ContentTemplate>
<asp:HiddenField ID="currentStage" runat="server" />
<h1>
<asp:Label ID="lblFormTitle" runat="server" Text="Request"></asp:Label>
Contract Review/Approval
</h1>
<div class="divControl">
<table>
<tr>
<td>
<asp:Label ID="lblTitle" runat="server" Text="Title"></asp:Label>
</td>
<td>:</td>
<td>
<asp:TextBox ID="txtTitle" runat="server"></asp:TextBox>
<asp:RequiredFieldValidator ID="requiredValidatorTitle" runat="server" ErrorMessage="*" ControlToValidate="txtTitle" ValidationGroup="SubmitValidation"></asp:RequiredFieldValidator>
</td>
</tr>
<tr>
<td>
<asp:Label ID="lblRequestType" runat="server" Text="Request Type"></asp:Label>
</td>
<td>:</td>
<td>
<asp:DropDownList ID="ddlRequestType" runat="server" CssClass="dropdownRequestType" OnSelectedIndexChanged="ddlRequestType_SelectedIndexChanged" AutoPostBack="true">
</asp:DropDownList>
</td>
</tr>
<tr>
<td>
<asp:Label ID="lblDocumentType" runat="server" Text="Document Type"></asp:Label>
</td>
<td>:</td>
<td>
<asp:DropDownList ID="ddlDocumentType" runat="server">
</asp:DropDownList>
</td>
</tr>
<tr>
<td>
<asp:Label ID="lblRequestedBy" runat="server" Text="Requested By"></asp:Label>
</td>
<td>:</td>
<td class="tdPeoplePick">
<SharePoint:PeopleEditor Enabled="false" ID="pplRequestedBy" runat="server" AllowEmpty="false" MultiSelect="false" SelectionSet="User" />
</td>
</tr>
<tr>
<td>
<asp:Label ID="lblRequiredDate" runat="server" Text="Required Date"></asp:Label>
</td>
<td>:</td>
<td>
<asp:TextBox ID="dtRequiredDate" runat="server" CssClass="datePicker"></asp:TextBox>
<asp:RequiredFieldValidator ID="requiredValidatorRequiredDate" runat="server" ControlToValidate="dtRequiredDate" ErrorMessage="*" ValidationGroup="SubmitValidation"></asp:RequiredFieldValidator>
</td>
</tr>
<asp:Panel ID="pnlRequestedDate" runat="server">
<tr>
<td>
<asp:Label ID="lblRequestedDate" runat="server" Text="Requested Date"></asp:Label>
</td>
<td>:</td>
<td>
<asp:TextBox ID="dtRequestedDate" runat="server" CssClass="datePicker"></asp:TextBox>
</td>
</tr>
</asp:Panel>
<tr>
<td>
<asp:Label ID="lblDescription" runat="server" Text="Description"></asp:Label>
</td>
<td>:</td>
<td>
<asp:TextBox ID="txtDescription" runat="server"></asp:TextBox>
<asp:RequiredFieldValidator ID="RequiredValidatorDescription" runat="server" ControlToValidate="txtDescription" ErrorMessage="*" ValidationGroup="SubmitValidation"></asp:RequiredFieldValidator>
</td>
</tr>
<tr>
<td>
<asp:Label ID="lblClientCode" runat="server" Text="Client Code"></asp:Label>
</td>
<td>:</td>
<td>
<asp:TextBox ID="txtClientCode" runat="server"></asp:TextBox>
<asp:RequiredFieldValidator ID="requiredValidatorClientCode" runat="server" ControlToValidate="txtClientCode" ErrorMessage="*" ValidationGroup="SubmitValidation"></asp:RequiredFieldValidator>
</td>
</tr>
<tr>
<td>
<asp:Label ID="lblSSOCode" runat="server" Text="SSO Code"></asp:Label>
</td>
<td>:</td>
<td>
<asp:TextBox ID="txtSSOCode" runat="server"></asp:TextBox>
<asp:RequiredFieldValidator ID="requiredValidatorSSOCode" runat="server" ControlToValidate="txtSSOCode" ErrorMessage="*" ValidationGroup="SubmitValidation"></asp:RequiredFieldValidator>
</td>
</tr>
<asp:Panel ID="panelCPC" runat="server">
<tr>
<td>
<asp:Label ID="lblCPC" runat="server" Text="CPC"></asp:Label></td>
<td>:</td>
<td><asp:TextBox ID="txtCPC" runat="server"></asp:TextBox></td>
<asp:CustomValidator ID="customValidatorCPC" runat="server" ControlToValidate="txtCPC" ErrorMessage="*" ValidationGroup="SubmitValidation"></asp:CustomValidator>
</tr>
</asp:Panel>
<tr>
<td>
<asp:Label ID="lblValue" runat="server" Text="Value (US$)"></asp:Label>
</td>
<td>:</td>
<td>
<asp:DropDownList ID="ddlValue" runat="server"></asp:DropDownList>
</td>
</tr>
<asp:Panel ID="panelCRM" runat="server">
<tr>
<td><asp:Label ID="lblCRMUpdated" runat="server" Text="CRM Updated"></asp:Label></td>
<td>:</td>
<td>
<asp:CheckBox ID="checkBoxCRMUpdated" runat="server" />
</td>
</tr>
</asp:Panel>
<tr>
<td>
<asp:Label ID="lblAgreement" runat="server" Text="Agreement Authorisation Level"></asp:Label>
</td>
<td>:</td>
<td>
<asp:DropDownList ID="ddlAgreement" runat="server"></asp:DropDownList>
</td>
</tr>
<tr>
<td>
<asp:Label ID="lblAssignedTo" runat="server" Text="Assigned To"></asp:Label>
</td>
<td>:</td>
<td class="tdPeoplePick">
<SharePoint:PeopleEditor ID="pplAssignedTo" runat="server" AllowEmpty="true" MultiSelect="false" SelectionSet="User" />
</td>
</tr>
<tr>
<td>
<asp:Label ID="lblStatus" runat="server" Text="Status"></asp:Label>
</td>
<td>:</td>
<td>
<asp:DropDownList ID="ddlStatus" runat="server" CssClass="dropdownStatus"></asp:DropDownList>
</td>
</tr>
<asp:Panel ID="panelStartDate" runat="server">
<tr>
<td>
<asp:Label ID="lblStartDate" runat="server" Text="Start Date"></asp:Label>
</td>
<td>:</td>
<td>
<asp:TextBox ID="txtStartDate" runat="server" CssClass="datePicker"></asp:TextBox>
</td>
</tr>
</asp:Panel>
<asp:Panel ID="panelEndDate" runat="server">
<tr>
<td>
<asp:Label ID="lblEndDate" runat="server" Text="End Date"></asp:Label>
</td>
<td>:</td>
<td>
<asp:TextBox ID="txtEndDate" runat="server" CssClass="datePicker"></asp:TextBox>
</td>
</tr>
</asp:Panel>
<asp:Panel ID="pnlTemplate" runat="server">
<tr id="rowTemplate">
<td>Selected Template</td>
<td>:</td>
<td>
<span id="selectedTemplateSpan"></span>
<asp:HiddenField ID="hdnSelectedTemplate" runat="server" />
<asp:Button ID="buttonLookupTemplate" runat="server" Text="Choose Template" CssClass="buttonTemplate" /></td>
</tr>
</asp:Panel>
<tr>
<td>
<asp:Label ID="lblLatestDocument" runat="server" Text="Latest Document"></asp:Label>
</td>
<td>:</td>
<td>
<asp:HyperLink ID="linkLatestDocument" runat="server"></asp:HyperLink>
<asp:FileUpload ID="fuLatestDocument" runat="server" />
<asp:CustomValidator ControlToValidate="fuLatestDocument" OnServerValidate="LatestDocument_ServerValidate"
ErrorMessage="The document with same name already exist, please use different name." SetFocusOnError="true" runat="server" ForeColor="Red" />
</td>
</tr>
<tr>
<td>
<asp:Label ID="lblTaggedPerson" runat="server" Text="Person Tagged">
</asp:Label>
</td>
<td>:</td>
<td class="tdPeoplePick">
<SharePoint:PeopleEditor ID="peopleTaggedPerson" runat="server" MultiSelect="true" AllowEmpty="true" SelectionSet="User" />
</td>
</tr>
</table>
</div>
<div>
<table class="tbButton">
<tr>
<td></td>
<td>
<asp:Button ID="btnSubmit" runat="server" Text="Submit" OnClick="btnSubmit_Click" OnClientClick="PreSubmit();" ValidationGroup="SubmitValidation"/>
</td>
<td>
<asp:Button ID="btnCancel" runat="server" Text="Cancel" OnClick="btnCancel_Click"/>
</td>
<asp:TextBox ID="txtCheck" runat="server" Text="Add" Visible="false"></asp:TextBox>
<asp:TextBox ID="txtTempID" runat="server" Style="visibility: hidden;"></asp:TextBox>
<asp:TextBox ID="txtIsAddNew" runat="server" Text="true" Visible="false"></asp:TextBox>
</tr>
</table>
</div>
<div id="tabContainer">
<div class="tabs">
<ul>
<li id="tabHeader_1">Comment</li>
<li id="tabHeader_2">Document Template History</li>
</ul>
</div>
<div class="tabscontent">
<div class="tabpage" id="tabpage_1">
<div id="phComment" runat="server"></div>
</div>
<div class="tabpage" id="tabpage_2">
<div id="phDocHistory" runat="server" />
</div>
</div>
</div>
</ContentTemplate>
<Triggers>
<asp:PostBackTrigger ControlID="btnSubmit" />
</Triggers>
</asp:UpdatePanel>
<asp:HiddenField ID="hfComment" runat="server" />
</div>
<script type="text/javascript">
$("#<%= upContract.ClientID %>").ready(function () {
setTimeout(MitraisCM.contract(), 5000);
</script>

Answer 1

Hi,                                                             
Per my knowledge, such error might occurred when we modify the HTML code of the page, through SharePoint Designer or Content Editor Web Part.
What web part you added into the page?
What if you create another new page and insert a list into it, will the error occurs?
Feel free to reply with the test result if the issue still exists.
Best regards
Patrick Liang
TechNet Community Support