Help with a little Javascript please

Basically, the code below opens up in a new browser window:

javascript:q=(document.location.href);void(open('http://www.historynexus.net/submit.php?url='+escape(q),'','resizable,location,menubar,toolbar,scrollbars,status'));

Code (markup):

What I would like it to do is open up in the same window without opening up in a new browser every time it's clicked.

 

Put it in an anchor.