Set or lengthen the Time-Out on an <image ALT> tag or workaround?

[ISMAILC]

Hi, I need help please!

I have fields with images next to them used as tooltips, I'm using the ALT
but the problem io have the users have lenthy text they want to display over the images. The ALT works fine but it time-out which does not allow users to read the full tooltip text!

Is there a way i can set the lenght or a workaround or another way?

Please Assist!

Regards