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style sheet

<xsl:param name=”message” />

<xsl:template match=”/”>

<html>

<head>

<title>Employees</title>

</head>

<body>

<ul>

<xsl:apply-templates select=”*” />

</ul>

Message: <xsl:value-of select=”$message” />

</body>

</html>

</xsl:template>

<xsl:template match=”employee”>

<li><xsl:value-of select=”name” />, <xsl:value-of select=”@title”

/></li>

</xsl:template>

</xsl:stylesheet>

This style sheet adds two lines of code. The first is an

<xsl:param/>

element that defines a parameter

named

message

. The second line outputs the

message

by using the

<xsl:value-of/>

element (the

dollar sign indicates that this is a local variable, not an element or an attribute).

To set the value of

message

, you use the

addParameter()

method before calling

transform()

. The

addParameter()

method takes two arguments, the name of the parameter to set (as specified in

<xsl:param/>

’s name attribute) and the value to assign it (most often a string, but can be a number or

Boolean as well):

oProcessor.input = oXmlDom.documentElement;

oProcessor.addParameter(“message”, “Hello World!”);

oProcessor.transform();

By setting a value for the parameter, the output now becomes the following:

<html>

<head>

<title>Employees</title>

</head>

<body>

<ul>

<li>Nicholas C. Zakas, Software Engineer</li>

<li>Jim Smith, Salesperson</li>

</ul>

Message: Hello World!

</body>

</html>

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