There are many ways to disable the right click; however there seems no real way to absolutely disable the right click.
No Right Click
http://javascript.internet.com/page-details/no-right-click.html
Disabling the right click on web page
http://www.codeproject.com/KB/aspnet/Disabling_the_right_click.aspx
No "Right Click" JavaScript
http://www.billybear4kids.com/clipart/riteclic.htm
Disable right mouse click script
http://www.dynamicdrive.com/dynamicindex9/noright.htm
Disabling Right-Click on a web page
http://rainbow.arch.scriptmania.com/scripts/no_right_click.html
Basic No-Right-Click Script With Alert Message
http://www.codelifter.com/main/javascript/norightclick1.html
Disable Right Click - Disable Image Toolbar
http://www.web-wise-wizard.com/javascript-tutorials/disable-right-click.html
Disable Right Click
http://www.webpagemistakes.ca/disable-right-click/