<div class="test">1</div>
<div class="test">2</div>
<div class="test">3</div>
<script>
var test = document.querySelectorAll('.test');
for (var i=0;i<test.length;i++){
test[i].addEventListener('click',(function(n){
return function(){
alert(n + 1);
}
})(i),false);
}
</script>
