[hide1] [show1] [hideshow1]

[hide2] [show2] [hideshow2]

[onmousover hideboth] [onmousover showboth]

[onmousover show both, onmouseout hide both]

Change the left and the top in the style to place it where you want,
or make it position:relative and place where you want it.
Here is the text that shows and hides itself...number1
Here is the text that shows and hides itself...number2