Whats the most effective way to swap html output

Whats the most effective way to swap html output

References

Reference NO 1

http://www.cs.utsa.edu/~wagner/CS2213/swap/swap.html

Reference NO 2

http://alloutput.com/guitar/5-way-switches-explained/

Reference NO 3

http://oreilly.com/catalog/spt2/chapter/ch04.html

Reference NO 4

http://www.image-line.com/support/FLHelp/html/envsettings_audio.htm

Reference NO 5

http://www.ladyada.net/learn/arduino/lesson5.html

Reference NO 6

http://www.phptherightway.com/pages/The-Basics.html

Reference NO 7

http://www.w3schools.com/js/js_switch.asp

Reference NO 8

http://www.muscleandstrength.com/articles/switch-up-your-bodybuilding-routine.html