How to link to a document from a child page within a container

Hi
can anyone help me...I have a secure area on my modx website where the page is password protected. There are documents within the secure area - child pages of the container page. I am trying to link to PDF documents (the page is a resource library). The problem I am having is that the links do not work as they are adding the container name into the link e.g.

http://www.ioha.net/**containername**/assets/files/**filename.pdf**

In the link above **containername** is the part of the link that is causing the problem. How do I get modx to get the files from the correct location:

http://www.ioha.net/assets/files/**filename.pdf**

Also: is there a way of protecting the document links from anyone downloading them?

Thanks

Sally

I think you need to add this line in the <head>-</head> section of your template.

Thanks that worked perfectly!

Is there a way of securing the documents within a password protected area?

At the moment if I log out and copy and paste the link location I can still get to the document. That is not secure really - is there any way that the links can be encrypted somehow?

Thanks