Decision functions

`DirectoryExists`	`IsDefined`	`IsPDFFile`	`IsXmlDoc`
`FileExists`	`IsInstanceOf`	`IsPDFObject`	`IsXmlElem`
`FileIsEOF`	`IsJSON`	`IsQuery`	`IsXmlNode`
`IIf`	`<c code>IsK2ServerABroker`	`IsSimpleValue`	`IsXmlRoot`
`IsArray`	`<c code>IsK2ServerDocCountE xceeded`	`IsStruct`	`LSIsCurrency`
`IsBinary`	`IsK2ServerOnline`	`IsUserInAnyRole`	`LSIsDate`
`IsBoolean`	`IsLeapYear`	`IsValid`	`LSIsNumeric`
`IsCustomFunction`	`IsNumeric`	`IsWDDX`	`StructIsEmpty`
`IsDate`	`IsNumericDate`	`IsXML`	`StructKeyExists`
`IsDebugMode`	`IsObject`	`IsXmlAttribute`	`YesNoFormat`
`IsDDX`

Adobe ColdFusion 8