Automatic resizing of the images in my portal?

How to make big images to be automaticly resized to 500 px width (for example) in my portal?
I did that to my forum but cant do it to my portal!
Maybe i should add some code here??

HTML code:

Code:

<IMG SRC="Image LINK Here" WIDTH="100" HEIGHT="20" BORDER="0">

Uhm ...

~PSYDEX~ wrote:How to make big images to be automaticly resized...
Maybe i should add some code here??

Guys i'm talking about this code :
https://help.forumotion.com/manage-the-appearance-of-your-forum-f45/automatic-resize-of-the-images-t25750.htm
Where should i put that code to effect on my portal??