Compiling file with servlet.jar

Hi,
I can compile my file under the arm/pdm package fine by using this command:
javac -classpath .;.. pdm\FileName.java
but now i wrote a servlet which imports the javax.servlet directory.
So in order for the class to compile i have to give it the path of the servlet.jar file which is in this directory: c:/jdk1.3.1_07/lib/servlet.jar
The problem am having is that i can't give both the classpaths at one time in order to compile my servlet which also uses classes in the pdm directory and also from a different directory under arm.
Please help
Thanks

Perhaps
javac -classpath .;..;c:\jdk1.3.1_07\lib\servlet.jar pdm\FileName.java

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^
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} catch(final MalformedURLException e) {
^
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