Reference images outside the database

Hi,
I tried to return html content from a pl/sql procedure but the images referenced were missing. Attached please see the part of the coding in the pl/sql procedure. Everything worked except the images. When I specified something like <img src="" />, the image would come up. Whenever I included an inline (or external) stylesheet in the pl/sql procedure, the images were not picked up.
Thanks.
Andy
Here is the code:
CREATE OR REPLACE PROCEDURE test_email AS
ret_code integer := -1;
begin
-- Send email
select db_mail.send_mail('[email protected]',
'test email',
'<html>
<head>
<title></title>
<style type="text/css">
div#pullquote
     background: #fff url(<reference image in another server>) no-repeat;
div#pullquote p
     padding: 0 20px;
div#pullquote h2
margin: 0;
     padding: 20px 20px 0 20px;
     background: url(<reference image in another server>) no-repeat 100% 0;
div#pullquote p.furtherinfo
     text-align: right;
</style>
</head>
<body>

<img src="http://<server name>:7778/i/themes/custom/hrims_logo.gif" alt="" class="left" />
     <div id="pullquote">
<h2></h2>
     <h3>this is a test</h3>
</div>

</body></html>',
'HRiMS',
'text/html')
INTO ret_code
FROM dual;
end test_email;

CREATE OR REPLACE PROCEDURE test_email AS
ret_code integer := -1;
begin
-- Send email
select db_mail.send_mail('[email protected]',
           'test email',
           '<html>
           <head>
           <title></title>
           <style type="text/css">
div#pullquote { background: #fff url(<reference image in another server>) no-repeat; }
div#pullquote p { padding: 0 20px; }
div#pullquote h2 { margin: 0; padding: 20px 20px 0 20px; background: url(<reference image in another server>) no-repeat 100% 0; }
div#pullquote p.furtherinfo { text-align: right; }
           </style>
           </head>
           <body>
           <div id="pullquote"><h2></h2>this is a test</div>
           
           </body></html>',
           'HRiMS',
           'text/html') INTO ret_code FROM dual; end test_email;The database version is 10.2.0.1.0.
I'm trying to use PL/SQL to generate email content in HTML.
Thanks.
Andy

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