German character set problem(Umlaute)

Hi,

we have the following problem with our internet application.
If the user make an input in a pure HTML form like "müller" the server 
(JAVA servlets with Tomcat 4.0.3) get "müller".
If the user make the input in a HTML form which was generated by the 
TransformerFactory of the package javax.xml.transform (j2sdk1.4.0_01) 
the server receives the String "mÃŒller"!
The xml and xsl file contain the following information:
<?xml version="1.0" encoding="ISO-8859-1"?>

If the input is changed to m&uuml;ller the server receives the String 
"mÃŒller" , too.
Any idea what goes wrong?

Greetings,
Andreas


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