document.getElementbyId() returning null [duplicate]

Answer 1

Put your script at the end of the HTML document instead of the beginning, and see if that solves things.

JavaScript can't edit the DOM element because it hasn't been created yet.

Answer 2

This error could also indicate that the element doesn't have an ID.

<input type="text" name="myelem" />

Make sure your element has an ID.

<input type="text" name="myelem" id="myelem" />

Answer 3

You are executing your javascript code BEFORE the <div id="connectedUnregistered" /> was actually created.

Also note that you did not close your <div> with a corresponding </div>.

So move your javascript code to a part below your HTML. Or execute it after the page finished loading. If you are using JQuery you can do:

<script>

    $(document).ready(function() {

        ... your code ...

    });
</script>