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Thread: getelementid with a variable

  1. #1
    Join Date
    Feb 2014

    getelementid with a variable

    Hello, I have an asp page that reloads each time a link is clicked which runs a new query selection. Because of the reload, I lose my current link information, and I want to apply a style to the last clicked link. So I am putting an id on the links. Then I just put the same id name in the asp variables
    of the link. Then I have it declared and retrieved in my asp code. All this works. So after that, I retrieve curr to lcurr, then to a new javascript variable called MyJSVar. (MyJSVar seems to get the correct id name into it) Then I am trying to use getelementid to find that link with the same id as the variable value and then put some style value to it. This does not work. Can anyone tell me what is going wrong. Here is the code used for these parts.
    I have tried just hardcoding my code to one of the link id's such as the "aa" one and it still does not work.
    Any ideas?

    <script type="text/javascript">

    window.onload = function() {
    var myJsVar='<%=lcurr%>';
    function changeColor() {

    link example
    <ul class="navigation">
    <li id="aa"><a href="myasppage.asp?group=cats&amp;curr=aa">cats</a></li>
    <li id="bb"><a href="myasppage.asp?group=dogs&amp;curr=bb">dogs</a></li>

  2. #2
    Join Date
    Mar 2009
    Where is the function "changeColor" called? Shouldn't you have:
    window.onload = function() {
    var myJsVar='<%=lcurr%>';
    changeColor(); //here

  3. #3
    Join Date
    Mar 2007
    You don't need
    window.onload = function() {
    var myJsVar='<%=lcurr%>';
    you only need
    as the variable needs to be avaiable in the global sense, it also does not need to be nested in a window.onload function because the value of it is set on page render.

    IMHO I don't see why you can't achieve your goal by way of using CSS that is written in and set on page render.
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