Suggestion: IMG Onmouseover

[PEDRO12]

I was wondering if you guys could add a BBCode for onmouseover to change an image when the mouse hovers over it. It could be really helpful and I doubt it'd have any bad side effects. I know you guys know this xD, but just to make my point clear, I mean something like this:

<img src="{param}" onmouseover="this.src='{option}'" onmouseout="this.src='{param}'" />

BBCode Tag Name: img

Allow Option: Yes

So it'd be like:

[img=hover image URL here]normal image URL here[/img]

I think it'd be a nice idea and it'd be very useful you know? Especially for signature/thread image buttons :3