How to pass a javascript function into APPLET PARAM

I need to pass the applets browser URL into it. I thought a javascript function would be the way to do it. I have a javascript function that grabs the value that I want. I know this function works because I tested it independently. I want to pass the value that the function returns into the applet param. I have tried the following:

Code:

---

        <APPLET CODE="theJarFile/theClass.class"
                ARCHIVE="theJar.jar"
                WIDTH="985"
                HEIGHT="185"
                PARAM name="jscode" value=javascript:getTheValue()
        </APPLET>

---

I have tried different variations of the PARAM line. None of them seem to work. How can I do this?