jQuery - Can I hide field from standard detail page.........

In Salesforce, without overriding page, can we hide fields from standard page.
I have a custom page which is added to a section in page layout and need to hide those fields which is shown in custom page from standard page because it appears twice.......

Thank You.

Do you have a Javascript specific question? I have never looked at the workings of Salesforce. You will need to provide an example document, explanation and specifics of the problem, as well as any attempts you have made.