title: HTML page disable copy/paste
body: <p>In a HTML page user should not be allowed to copy a text, but at the same time I want to give option for the user to select a particular text (for highlighting purpose). That means <kbd>CTRL</kbd>+<kbd>C</kbd> should be disabled and <kbd>CTRL</kbd>+<kbd>A</kbd> should be enabled.</p>
  
  <p>Can anyone tell me how to do this?</p>