Hi, does anyone know why the following doesn't work in IE6, or how I could get it to work?

Code HTML4Strict:
<a href="index.php?month=6&year=2007" onclick="getCalendar('6', '2007'); return false;">Prev</a>

I want the href to only be used if javascript is disabled... but IE6 uses it anyway

Where as IE7 and firefox work fine...

Any ideas?