HBCMS更多的中文手册参考:

SelectAll Command

DHTML文档教程

Selects the entire document.

Scripting Information

Command SelectAll
User interface None. Set bUserInterface to false or omit. 
execCommand vValue Optional. Set to null or omit.
Applies toexeccommandquerycommandenabledquerycommandindetermquerycommandstatequerycommandsupportedqueryCommandValue.

是否符合公共标准

There is no public standard that applies to this command.

Minimum Availability

Internet Explorer 4.0 and later.