Microsoft Jscript runtime error:Unable to set value of the property ‘dispose’:object is null or undefined

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C#

ASP.NET

Hi All,

I am Using Validation Summary like

<asp:ValidationSummary ID="VSChangePassword1" runat ="server" ShowMessageBox ="true" ShowSummary ="false"  
ValidationGroup ="VGChangePassword1" DisplayMode="List" />

I have 3 text boxes & 1 Submit button in my page i.e., Old Password, New Password, Re-Type New Password & Submit.
If I don’t given anything in textboxes & click on Submit button then it is showing Validation Summary Message Box like
Please enter Old Password, Please enter New Password & Please enter Re-Type New Password.
If I gave all correct & click on submit button it is showing following Script error i.e.,

Microsoft Jscript runtime error:Unable to set value of the property ‘dispose’:object is null or undefined

<script type="text/javascript">

//<![CDATA[

(function() {var fn = function() {$get("ctl00_ToolkitScriptManager1_HiddenField").value = '';Sys.Application.remove_init(fn);};Sys.Application.add_init(fn);})();var ctl00_RCMMenu_Data = new Object();

ctl00_RCMMenu_Data.disappearAfter = 500;

ctl00_RCMMenu_Data.horizontalOffset = 0;

ctl00_RCMMenu_Data.verticalOffset = 0;

ctl00_RCMMenu_Data.hoverClass = 'ctl00_RCMMenu_16 DynamicItemHover';

ctl00_RCMMenu_Data.hoverHyperLinkClass = 'ctl00_RCMMenu_15 DynamicItemHover';

ctl00_RCMMenu_Data.staticHoverClass = 'ctl00_RCMMenu_14 StaticMenuHover';

ctl00_RCMMenu_Data.staticHoverHyperLinkClass = 'ctl00_RCMMenu_13 StaticMenuHover';

document.getElementById('ctl00_ContentPlaceHolder1_ChangePassword1_ChangePasswordContainerID_VSChangePassword1').dispose = function() 
{
Array.remove(Page_ValidationSummaries, document.getElementById('ctl00_ContentPlaceHolder1_ChangePassword1_ChangePasswordContainerID_VSChangePassword1'));
}

var Page_ValidationActive = false;

if (typeof(ValidatorOnLoad) == "function") 
{
ValidatorOnLoad();
}

function ValidatorOnSubmit() 
{
if (Page_ValidationActive)
{

  return ValidatorCommonOnSubmit();
}
else 
{        
return true; 
}
}
<pre lang="xml">To see the error image please click on below link

http://www.freeimagehosting.net/yhkfk[^]


Regards,
VenkateshDesai.k

[edit]clickable link[/edit]