SQL & PL/SQL

Due to some special characters I've used the utl_url.escape to escape these characters. When I read the data in javascript (via Ajax) - I use the unescape.

But some of the characters turns out as inverted questions marks.

1) Are there any alternatives to the utl_url.escape?
2) Don't utl_url.escape unescape javascript and javascript unescape match?
3) Can I provide some kind of NLS flag - to force the right translation?
4) I've coded my Ajax XML header like this:
OWA_UTIL.Mime_Header ('text/xml');
htp.p ('<?xml version="1.0" encoding="UTF-8"?>');
........ - Is that ok - or do I miss something?


Any help will be appreciated....

Thanx,
Henrik