Hi,
I'm using XSLT 1.0. I need help on NOT displaying multiple CDATAs in a tag.

Here is my snippet of XSLT:
<xsl:output method="xml" version="1.0" encoding="UTF-8" cdata-section-element="Room"/>

<xsl:template match="Room">
  <Box>
    <xsl:call-template name="Pen_Template"/>
    <xsl:call-template name="Pencil_Template"/>
  </Box>
</xsl:template>
<xsl:template name="Pen_Template">Blue Pen,</xsl:template>
<xsl:template name="Pencil_Template">Black Pencil</xsl:template>

The output is the following:
<Box><![CDATA[Blue Pen,]]><!CDATA[Black Pencil]]></Box>

What I like my output to be is the following:
<Box><![CDATA[Blue Pen,Black Pencil]]></Box>

Please help.

Your XSLT processor isn't being very clever here, but it's acting within the rules, and there's no obvious way of changing its behaviour. You could switch to a better XSLT processor, or you could write to the vendor and complain. Alternatively, a trick that might work is to concatenate the results of the two template calls in a variable and then output the variable (or perhaps in two separate variables, and output <xsl:value-of select="concat($v1, $v2)"/>)

But do you really need the output in CDATA sections, and why? Any XML parser will treat it exactly the same if it's not in a CDATA section.

Michael Kay
http://www.saxonica.com/
Author, XSLT 2.0 and XPath 2.0 Programmer's Reference