hack ask.fm auto like without program or script

hello everyone today I want to tell you how  did auto like in  ask.fm whithout any program or scripte

Just need an to focus that's easy way And exclusively In migo alyaf

you need browsers Google chrome or Mozilla fire fox 

I will explain  how did that ..

the code : 

var migo= document.getElementsByClassName('like hintable');

while(migo.length!=0){

        for(var i=0;i<migo.length;i++){

                migo[i].click();

        }

}

Good luck ^_^