* This means that a valid XML or HTML document must be returned. If JSON data is required, it is suggested
* that it be placed either inside a <textarea> in an HTML document and retrieved from the responseText
* using a regex, or inside a CDATA section in an XML document and retrieved from the responseXML using
* This means that a valid XML or HTML document must be returned. If JSON data is required, it is suggested
* that it be placed either inside a <textarea> in an HTML document and retrieved from the responseText
* using a regex, or inside a CDATA section in an XML document and retrieved from the responseXML using