How to Disable Right Click On Blogger?

 <!--Written by Themidom.in-->  
 <script language=javascript>  
 <!--  
 //Disable right click script - By https://themidom.in  
 //  
 var message="Function Disabled";  
 ////////////////  
 function clickIE() {if (document.all) {(message);return false;}}  
 function clickNS(e) {if  
 (document.layers||(document.getElementById&&!document.all)) {  
 if (e.which==2||e.which==3) {(message);return false;}}}  
 if (document.layers)  
 {document.captureEvents(Event.MOUSEDOWN);document.onmousedown=clickNS;}  
 else{document.onmouseup=clickNS;document.oncontextmenu=clickIE;}  
 document.oncontextmenu=new Function("return false")  
 // -->  
 </script>  

 <!--Written by Themidom.in-->  
 <!--This is a Stylish Controller with Notification-->  
 <script>  
 var message="Not Allowed";  
 var shouldAlert=1;  
 document.oncontextmenu=function(){  
  if(shouldAlert==1){  
  alert(message);  
  }  
  return false;  
 };  
 </script>  
 <!--Written by Themidom.in-->