No page reload

Trying to modify a web based remote for a media player so when you click on volume up down next play etc the page does not reload. Currently the html looks like this:

<area shape="rect" coords="406,224,474,311" href="&amp;zpfunc=fnVolDown" alt="Volume Down" />

What javascript can I add to stop the page from reloading each time that link is clicked?

 

try to add onclick="return false;"

 

or use onclick = "javascript();" this serves as an empty function and does not reload