How to Disable Right click? (Prevent copy cat)

1. Copy this code.

<script language="JavaScript">
<!-- 
var message="NO COPY CAT ARE ALLOWED!!!"; 
///////////////////////////////////
function clickIE4(){
if (event.button==2){
alert(message);
return false;
}
} 
function clickNS4(e){
if (document.layers||document.getElementById&&!document.all){
if (e.which==2||e.which==3){
alert(message);
return false;
}
}
} 
if (document.layers){
document.captureEvents(Event.MOUSEDOWN);
document.onmousedown=clickNS4;
}
else if (document.all&&!document.getElementById){
document.onmousedown=clickIE4;
} 
document.oncontextmenu=new Function("alert(message);return false") 
// -->
</script>

 2. Login to Blogspot. Go to Design and click Page Elements. Next, click add gadget and choose HTML/JAVA SCRIPT.
3. BEFORE you save, please edit the code that i've highlighted above. Put any words that you like to appear when copy cat occurs.
4. Now, click Save, and done!:)