onchange / onclick in a checkbox doesn't work in IE

Question

I have the following code, which works perfectly in Chrome/FF:

chkbx_send_demo.onchange = function(){
    if(sel_template.selectedIndex <= 0 && chkbx_send_demo.checked == true){
        alert("Choose a Template");
        sel_template.selectedIndex = 1;
    }
    if(chkbx_send_demo.checked == false){
        sel_template.selectedIndex = 0;
     }
}

But it just won't work in IE. I've tried to change the event to chkbx_send_demo.onclick and it still won't work.

Answer 1

Internet Explorer only fires the onchange event when the checkbox loses the focus (onblur). also see here:
http://krijnhoetmer.nl/stuff/javascript/checkbox-onchange/
and here:
http://bytes.com/topic/javascript/answers/92116-onchange-checkbox

Answer 2

i faced the same issue on ie8, i used below trick to fix it. http://sleeplesscoding.blogspot.com/2010/01/fixing-ie-onchange-event-for-checkboxes.html