Example of anticopy JS from Daum Korea blogs

gistfile1.js

document.oncontextmenu = new Function ('return false'); //block right-click
document.ondragstart = new Function ('return false'); //block drag and drop
document.onselectstart = new Function ('return false'); //block text select
document.body.style.MozUserSelect = 'none'; //block text select on miscellaneous browsers

//Below is a js library containing various anti-copy schemes
http://s1.daumcdn.net/cfs.tistory/v/0/blog/plugins/PreventCopyContents/js/functions.js