I don't know whether anyone has used the new google calendar but it has a pretty cool alert box and I was wondering if anyone knows how to do it ?
Basically, it pops up a layer in the middle of the screen and it fades everything in the background to white (about 50%).
If that doesn't really explain it then I've taken a screengrab here...http://184.108.40.206/calendargrab.gif
I thought that layer transparency only worked in IE but this seems to work in Firefox too, also I have no idea how they have centred the layer in the middle of the screen.
Any ideas would be appreciated.