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HomeHomeUsing DNN Platf...Using DNN Platf...Administration ...Administration ...JavaScript Conflict with File ManagerJavaScript Conflict with File Manager
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9/10/2007 12:28 PM
 
nwilds

Joined: 2/19/2007
Posts: 8

For purely visual effects, I am using some JavaScript in the header div tag to randomly display a background image upon page reload. It works fine, but is conflicting with the JavaScript used on the File Manager page. The error I am receiving is: selTreeNode is null or not an object
dnn.controls.controls

Can anything be done to my JavaScript to correct the conflicts occuring between it and the File Manager JS? I am running version 4.05.01. As always, thanks.

<script type="text/javascript">
<!--
if (document.getElementById) { window.onload = swap };

function swap() {
var numimages=15;
rndimg = new Array("/Portals/0/header-bg/bg-1.jpg", "/Portals/0/FPCU-Developer/header-bg/bg-2.jpg", "/Portals/0/FPCU-Developer/header-bg/bg-3.jpg", "/Portals/0/FPCU-Developer/header-bg/bg-4.jpg", "/Portals/0/FPCU-Developer/header-bg/bg-5.jpg", "/Portals/0/FPCU-Developer/header-bg/bg-6.jpg", "/Portals/0/FPCU-Developer/header-bg/bg-7.jpg", "/Portals/0/FPCU-Developer/header-bg/bg-8.jpg", "/Portals/0/FPCU-Developer/header-bg/bg-9.jpg", "/Portals/0/FPCU-Developer/header-bg/bg-10.jpg", "/Portals/0/FPCU-Developer/header-bg/bg-11.jpg", "/Portals/0/FPCU-Developer/header-bg/bg-12.jpg", "/Portals/0/FPCU-Developer/header-bg/bg-13.jpg", "/Portals/0/FPCU-Developer/header-bg/bg-14.jpg", "/Portals/0/FPCU-Developer/header-bg/bg-15.jpg");
x=(Math.floor(Math.random()*numimages));
randomimage=(rndimg[x]);
document.getElementById("header").style.backgroundImage = "url("+ randomimage +")";
}
//-->
</script>
 
New Post
9/10/2007 2:09 PM
 
Jon Henning

www.codeendeavors.com
Joined: 3/20/2003
Posts: 1767

Your logic basically is truncating any other module or framework code that wishes to put code in the onload event.  You need to use a more friendly approach for adding your onload handler.  The DNN Framework has this in the DNNClientAPI namespace (can't remember the name, something like AddBodyOnLoad).
 
New Post
9/10/2007 2:55 PM
 
nwilds

Joined: 2/19/2007
Posts: 8
Thanks - it was indeed the onload handler.

The solution for anyone who is interested (compliments of my developer friend JV): 

Delete this line:
if (document.getElementById) { window.onload = swap };

Add this before the close body tag:
<script type="text/javascript">
swap()
</script>
 
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HomeHomeUsing DNN Platf...Using DNN Platf...Administration ...Administration ...JavaScript Conflict with File ManagerJavaScript Conflict with File Manager


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