Question

I am attaching onclick event on dynamically created button but the event is not firing.

var ind = location.href.indexOf('http://www.example.com/');
function init(){
    alert('h');
}
if(ind != -1){      
    var elem = document.createElement("input"); 
    elem.id ='btnGumb';
    elem.value = 'Select Check box';
    elem.type = 'button';
    elem.style.position = 'fixed';
    elem.style.left = '0px';
    elem.style.top = '0px';

    //this is not working
    elem.setAttribute('onclick', 'init();');

    //but alert is working:   elem.setAttribute('onclick', 'alert("h");');

    document.body.appendChild(elem); 

}

Answer 1

Use addEventListener.

elem.addEventListener('click', init, false);

Your init function isn’t defined on the content page window, so you can’t set the function name as a string.