XmlCharacterData.SubstringData Method

Explanation	Extract a part of the string
Call format	var s = cd.SubstringData( offset, count )
Return value	Extracted character string
Arguments	integer offset	Position to extract (specified by the number of characters)
	integer count	Extract length (specified by the number of characters)
Exception	DOM-1	INDEX_SIZE_ERR
	DOM-7	NO_MODIFICATION_ALLOWED_ERR
Example of use	`var text = elm.FirstChild; text.ReplaceData(10, 3, "new text");`
Related item	XmlText class