June 17, 2013

Javascript method is not working on Firefox

Merand’s Question:

My stylesheet is working on ie, however it isnt working on firefox. It gives an error such as:

InvalidStateError: An attempt was made to use an object that is not, or is no longer, usable @
TypeError: document.getElementById(…) is null.

Here is my code:

<script style="javascript">
    function displayRevision2() {
        for (i = 1; i & lt; j; i++) {
            foo = document.getElementById('row' + i).innerHTML;
            substring = foo.substr(0, foo.search("n") - 1);
            if (flag == 1) document.getElementById(substring).style.display = "";
            else document.getElementById(substring).style.display = "none";
        if (flag == 1) flag = 0;
        else flag = 1;
<script style="javascript">
    function dispTD(num) {
        rowtxt = '&lt;TD class="br" align="middle" id="row' + num + '">';
<script style="javascript">
    function dispEndTD() {

It may be because the element the script is searching for does not exist on the document. Try to check if the scripts finds the element first before directly accessing its attributes.

fooElement = document.getElementById('row' + i);
if(fooElement) foo = fooElement.innerHTML;

Author: Nabin Nepal (Starx)

Hello, I am Nabin Nepal and you can call me Starx. This is my blog where write about my life and my involvements. I am a Software Developer, A Cyclist and a Realist. I hope you will find my blog interesting. Follow me on Google+


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