Image Alt tags in Linux

[Jonathan Hutchins]

I came across a web site that uses the "ALT" tag for images to provide price 
information.  The image used is consistently a dollar or euro sign.  

In MSIE all I have to do is roll my mouse over the image and the ALT tag text 
comes up in a little box, so this works nicely and subtly.

I can't seem to find this feature in any of the browsers on my Mandrake system 
though - Konqueror, Galleon, Mozilla, and Epiphany all refuse to display the 
tag.

I guess this is three questions: 1) Is there a way to enable this behavior in 
any or all of the above browsers, 2) Is there a browser for Linux that will 
allow it to be enabled, and 3) is there another way to access this info from 
any Linux browser?