How to trigger checkbox click event even if it's checked through Javascript code?

Question

I have many checkboxes in my page and there is a select all checkbox which checks all the checkboxes. Somehow I want to emulate that click event of checkbox even if it\'s checke

Answer 1

no gQuery

document.getElementById('your_box').onclick();

I used certain class on my checkboxes.

var x = document.getElementsByClassName("box_class");
var i;
for (i = 0; i < x.length; i++) {
    if(x[i].checked) x[i].checked = false;
    else x[i].checked = true;
    x[i].onclick();
   }