html - How to call javascript from a href? -

how call javascript href?

like:

<a href="<script type='text/javascript'>script code</script>/">call javascript</a> 

<a onclick="yourfunction(); return false;" href="fallback.html">one way</a>

** edit **
from flurry of comments, i'm sharing resources given/found.

previous q , a's:

• do ever need specify 'javascript:' in onclick? (and ie related a's following)
• javascript function in href vs onclick

interesting reads:

• http://crisp.tweakblogs.net/blog/the-useless-javascript-pseudo-protocol.html
• https://developer.mozilla.org/en-us/docs/javascript/reference/statements/label