Open Two Pages With One Link
Opens two pages at the same time. The href link opens a new url in the current page, while the window.open link opens a url in a new tab. The user's browser settings determine which url is current in the browser, ie, which tab is active.
<p><a href="http://www.indoorclimbing.com/" onclick="window.open('http://www.ziplinerider.com/'); return true;">Visit Indoorclimbing.com and Ziplinerider.com</a></p>
Example:
The HTML:
<p><a href="http://www.indoorclimbing.com/" onclick="window.open('http://www.ziplinerider.com/'); return true;"></a></p>
Produces the result: