Used for conditional processing. It takes a mandatory
attribute, whose value is a boolean expression. The contents of the
xsl:if element are expanded only of the expression is true.
Permitted parent elements: any XSLT element whose content model is sequence-constructor; any literal result element
The boolean expression to be tested. The full syntax of boolean expressions is outlined in XPath Expression Syntax.
Includes a hyperlink in the output only if the current element has a