Approval Email Notification --- Attached with a URL for displaying APPROVAL ENTRY FORM

Dear all,

I have a problem with the Approval entry. I am using NAV5.0, When a user send the request of approval, system will send the e-mail to the approver. But in the email, the linkage can only open the Approval Entry Form and display all the Line which may need the approver to approve.

But now I want to change the URL to do some filtering for approver to click the UPL in the e-mail, it will automatic to display the specify Approval Entry Line in the Apporval Entry Form.

Pleas help~~~