Why Is My Element Null?
Why when I do an alert of the value (see below) it returns null? When an element with that ID exists? // make reference to divs var countdown_timer = document.getElementById('count
Solution 1:
It's possible that the javascript is being executed before the elements on your page are not loaded, thus the selector isn't finding anything. Is your javascript above the <body> tag? Try putting it after </body> and see how that works for you.
Another solution is to do:
window.onload = function () {
//put all your JS here
}
Solution 2:
onload = function() {
// put you code here
}
Solution 3:
Your call to document.getElementById needs to be after the markup for the div.
<divclass="timer"id="countdown_timer"></div><scripttype="text/javascript">var countdown_timer = document.getElementById("countdown_timer");
...
</script>Alternatively, you could use the window.onload event, which would be the better way to go.
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