Change/Get check state of CheckBox

Question

I just want to get/change value of CheckBox with JavaScript. Not that I cannot use jQuery for this. I\'ve tried something like this but it won\'t work.

JavaScript fu

Answer 1

You need this:

window.onload = function(){
    var elCheckBox=document.getElementById("cbxTodos");
    elCheckBox.onchange =function (){
        alert("como ves");
    }
};