Result of getElementById is null using javascript?

Posted by  Chintoo Semi
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Hi Mindstick!

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Just struggling with a Javascript class being used as a method for some cometishian code, how do I have a constructor for this code? The following code is invalid:

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "">   



        <link rel="Stylesheet" href="gStyle.css" />           

        <script type="text/javascript" language="javascript">   

            // Gantt chart object

            function ganttChart(gContainerID) {   

                this.isDebugMode = true;

                this.gContainer = document.getElementById(gContainerID);   

                if (this.isDebugMode) {

                    this.gContainer.innerHTML += "<div id=\"gDebug\">5,5 | 5.1</div>";



            var myChart = new ganttChart("chart1");                 





    <div id="chart1" class="gContainer"></div>   



thanks in advance
  1. Re: Result of getElementById is null using javascript?


    <script type="text/javascript">
    var prevOnload = window.onload || function () {};
    window.onload = function () {
    // do your stuff here

    Also, untill all images are fully loaded onload will not trigger, consider using jquery & $(document).ready or similar.

      Modified On Mar-30-2018 11:58:51 PM