jQuery.zoom() demo

Try zooming

Firefox and IE
CTRL++ to zoom in
CTRL+- to zoom out
CTRL+0 to reset zoom
CTRL+(scroll up) to zoom in
CTRL+(scroll down) to zoom out

Opera
CTRL++ (numpad) to zoom in
CTRL+- (numpad) to zoom out
CTRL+0 (numpad) to reset zoom
CTRL+* (numpad) to reset zoom

Safari 2
CTRL++ (numpad) to zoom in
CTRL+- (numpad) to zoom out