<li class='sexy-delicious'><a class='external' expr:href='" http://del.icio.us/post?url="+ data:post.url + "& title=" + data:post.title' rel='nofollow' title='Share this on del.icio.us'> Share this on del.icio.us</a></li> Code (markup):
<a class='external' expr:href='" http://del.icio.us/post?url="+ dataost.url + "& title=" + dataost.title' rel='nofollow' title='Share this on del.icio.us' target="_blank">
Technically you shouldn't even use it at all. Aside from the fact that people decide whether to open a new page in the same or a new window/tab, but the attribute has been deprecated from the HTML and XHTML specifications. If you WANT to open a new page while adhering to the standards, use JavaScript to do so.