Not all your users have Flash

I'm disturbed and disgusted at the number of websites nowadays that have annoying popup DIVs with flash applets.

Case in point:

As the title says, not all your users have flash. Many of these sites are written by design-tards who don't think about these issues. Often they won't even include a non-flash "close" button.

"But why don't you have flash?", I hear you asking. There's a few reasons:

• It might not be available on your particular platform (64-bit Windows, for example)
• You run the FlashBlock extension, because you find that the only use for Flash is annoying advertisements and emo goths videos on YouTube
• You don't run Flash, because it's plagued by unpatched vulnerabilities

Spare a thought for your users. Also, if you use floating DIVs because your popup ads are blocked, think again why your popup ad was blocked in the first place.