Is there a way to show the overflowed text on button press using jquery or any other way?

Is there a way to show the overflowed text on button press using jquery or any other way?

Currently on the forum end of one of my sites, users like to create huge signatures. I would like them to have this option so I have used overflow to hide everything 150px and greater. On mousing over, the rest of the signature is displayed. This seems to annoy a lot of my members thou.

Is there a way to show the overflowed text on button press using jquery or any other way?

Edit:
Another way to ask, a show/hide script that shows a max-height of 150px but on click shows the rest of the content.