Not able to populate Images from Web server in PDF template from peoplecode with Oracle recommendati

I am trying to embed signatures [jpeg] from web server to RTF template in BI publisher by following the methods that were provided by Oracle in the following link using Field change peoplecode.

E-BI/XMLP: How To Reference An XML Element In A RTF Template For Images And Photos (Doc ID 664053.1)

I want to populate the signatures in the pdf template based on the country when end user clicks button on page. I am using Microsoft Word 2010 and BI Publisher 11.1.1.7 Build 11.117.0.79

Approach:1

url:{IMAGE_LOCATION}

Code that i added in BI Publisher properties advanced code and i am populating complete url in  FILENAME from Field change peoplecode :     url:{//<?FILENAME?>}