xslt multiple parameters into javascript

Im trying to create a function in javascript in xsl which accepts multiple in-parameters. I can not get it to work and get the following error:

Code:   0x80020009
Microsoft JScript runtime error
Wrong number of arguments or invalid property assignment
line = 37, col = 2 (line is offset from the start of the script block).
Error returned from property or method call.

The function looks as follows:

<msxsl:script language="JavaScript" implements-prefix="jsfuncs">
    <![CDATA[
    function getLineLength (x1,x2,y1,y2)
    {
    var xVector = x2 - x1;
    var yVector = y2 - y1;
    var output = Math.sqrt(raised2(xVector)+raised2(yVector));
    return output;
    }
    ]]>
    </msxsl:script>

The calling code looks as follows:

<xsl:value-of select="jsfuncs:getLineLength($x1,$x2,$y1,$y2)"/>

x1,x2... are variables set earlier and they are correct. I can get everything to work when I post-process the values to one parameter. Is it at all possible to pass multiple parameters in xslt to Javascript? The engine in use is msxml 3.0.

Here is an example passing in four parameters:

<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
    xmlns:ms="urn:schemas-microsoft-com:xslt"
    xmlns:mf="http://example.com/mf"
    exclude-result-prefixes="ms mf"
    version="1.0">

    <ms:script language="JScript" implements-prefix="mf">
        function test(a, b, c, d) {
          return a +  ":" + b + ":" + c + ":" + d;
        }
    </ms:script>

    <xsl:template match="/">
        <xsl:value-of select="mf:test(1, 2, 3, 'foo')"/>
        <br/>
        <xsl:variable name="item" select="root/item"/>
        <xsl:value-of select="mf:test(string($item/@a), string($item/@b), string($item/@c), string($item/@d))"/>
    </xsl:template>

</xsl:stylesheet>

As you can see, when wanting to pass in a node to a function expecting a primitive value I would recommend to make sure to convert it on the XSLT side to a primitive value first, as done in mf:test(string($item/@a), string($item/@b), string($item/@c), string($item/@d)), as otherwise the function will get a node-set represented by some selection interface that you would need to iterate first.

The sample works fine for me with MSXML 3 and outputs 1:2:3:foo<br />1:2:3:whatever when run against an input sample with

<?xml version="1.0" encoding="UTF-8"?>
<root>
    <item a="1" b="2" c="3" d="whatever"/>
</root>