Important:
This is retired content. This content is outdated and is no longer being maintained. It is provided as a courtesy for individuals who are still using these technologies. This content may contain URLs that were valid when originally published, but now link to sites or pages that no longer exist.

A version of this page is also available for

4/8/2010

Returns True if the function is in the function library.

Syntax


boolean function-available( string)

Parameters

string: Specifies a function name.

Return Value

Returns True if the function is in the function library.

Remarks

The argument must evaluate to a string that is a QName. The QName is expanded into an expanded-name using the name space declarations in scope for the expression. The function-availablefunction returns True if and only if the expanded-name is the name of a function in the function library. If the expanded-name has a non-null name space Uniform Resource Identifier (URI), it refers to an extension function; otherwise, it refers to a function defined by XML Path Language (XPath) or XSL Transformations (XSLT).

Example

The following function call returns True.

	Copy Code
function-available("format-number")

Internal Server Error

The server encountered an internal error or misconfiguration and was unable to complete your request.

Please contact the server administrator at webmaster@systemmanager.forsenergy.ru to inform them of the time this error occurred, and the actions you performed just before this error.

More information about this error may be available in the server error log.

Additionally, a 500 Internal Server Error error was encountered while trying to use an ErrorDocument to handle the request.