tedster - 10:21 pm on Jun 17, 2002 (gmt 0)

Validation depends on which DTD you choose.

There's been some confusion about the target attribute, because it's not included in the strict HTML4 DTD, only the transitional and frameset declarations. But from everything I read at the W3C, it's not deprecated.

Javascript is also a solution and you can make it accessible to non-js visitors like this:

<a href=[url here] onClick="[popup function here];return false;">