Retrieves the document type declaration associated with the current document.   
Syntax
[ oDocType = ] document.doctype
Possible Values
| oDocType | 
Object that
receives the document type declaration.| NULL | Default. Return value for HTML documents.  |  
  | 
The property is read-only.
The property has a default value of 
NULL.
Remarks
For HTML documents the doctype property returns null as defined by the World Wide Web Consortium (W3C) Document Object Model (DOM) Level 1 standard.
Standards Information
This property is defined in 
W3C DOM Level 1 
.
Applies To