xsl if 中判断参数值是否为真

在样式中调用<xsl:if test="flag='true'"><body>
    <div  class="hot_background">
        <ul>
            <xsl:for-each select="/allnews/item[type='视点' ][position() &lt; 7]" >
            <xsl:variable name="link"><xsl:value-of select="link" /></xsl:variable>
           
    <xsl:if test="flag='true'">
    <li>
               <p><xsl:value-of select="pubTime" />/<xsl:value-of select="dept" />/<xsl:value-of select="author" /></p>
<a href="{$link}" target="_blank"><span><xsl:value-of select="title" /></span></a>
<img src="http://xxxxx/toolkit/images/new.gif" border="0" /> 
            </li>
    </xsl:if>
    <li>
               <p><xsl:value-of select="pubTime" />/<xsl:value-of select="dept" />/<xsl:value-of select="author" /></p>
<a href="{$link}" target="_blank"><span><xsl:value-of select="title" /></span></a>
            </li>
            </xsl:for-each>
        </ul>
    </div>
</body>
 在xml中flag
<new><flag>true<flag><new>
能去到flag的值并且判断么