title: How to add toggle button on google map api v3?
body: <p>I found library: <a href="http://gmaps-utility-library-dev.googlecode.com/svn/trunk/geometrycontrols/examples/test.html" rel="nofollow">geometrycontrols</a> that is written to api v2 and allows adding buttons. How to make a toggle button to add a marker in the api v3? I have initiated map etc.</p>