It has to go in a custom footer (not html module) to work*. The source, which also has some interesting thoughts on the desirability of disabling right click, is below:
*Using in a custom footer:replace all code in xslt box with this:
Senate Bill 2988: The Philippine Nursing Practice Reform Act of 2011
This Senate Bill is introduced by Senator Ralph G. Recto, "instituting reforms to further protect and develop the nursing profession, amending for the purpose RA 9173, otherwise known as the "Philippine Nursing Act of 2002."