Selenium RC : Button is not clicked but test passes

Question

Hi all

I have a script which enters some data in the page and click save button.

Here I used HTML component id for save button.

selenium.click("StudentID:saveData");

I even provided proper wait condition and also tried with X path locator.

The test passes. It doesn't throw any error message but the button is not clicked and the data is not getting updated.

Please let me know what might be the issue .