Topic: loading iframes

I set up my site so that when someone clicks on 'contact us' it opens an iframe. but I do not want the iframe to appear untill they click on 'contact us'. As of right now, the iframe appears when the page loads.

I know there is a way to hide it but how?

javascript:

myIframe.style.display = "none"; //hide

myIframe.style.display = "block"; //show

so long,

->Tyberius Prime