I'm facing a runtime custom error problem on server

I'm facing a custom error problem on server.can u plz help me out

Runtime Error

Description: An application error occurred on the server. The current custom error settings for this application prevent the details of the application error from being viewed remotely (for security reasons). It could, however, be viewed by browsers running on the 开发者_运维技巧local server machine. 

Details: To enable the details of this specific error message to be viewable on remote machines, please create a <customErrors> tag within a "web.config" configuration file located in the root directory of the current web application. This <customErrors> tag should then have its "mode" attribute set to "Off".


<!-- Web.Config Configuration File -->

<configuration>
    <system.web>
        <customErrors mode="Off"/>
    </system.web>
</configuration>

Notes: The current error page you are seeing can be replaced by a custom error page by modifying the "defaultRedirect" attribute of the application's <customErrors> configuration tag to point to a custom error page URL.

this custom error appears only on those pages on them i used java script programing in images and for some other purpose. plz hepl me out....

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If you temporarily add the xml shown to your web.config then you will see the actual exception causing the problem which will help you identify and fix it. If you view the page from the web server machine locally you should also be able to see the specific exception without turning custom error mode off.