GWT app and link emulation

[Anazar_2001]

Hi,

I have a gwt site - https://www.whatiswhere.com. I have tab control which emulates the menu. I am planning to put <a>links instead of text into tab labels to create internal links. I am thinking to add java script to stop onclick event of</a> <a>otherwise i will get to the new session of GWT site. What I want is to just change the tab but at the same time have a link for the crawler. Would my approach work? Will it be equivalent to non-follow link? Will it improve the ranking comparing to 'no link at all' case?</a>

<a>Thanks,

Andrei.</a>