html: Html handling routines

String to html conversion. Inclusive tabs -> table conversion, point listings, headers, seperator lines and smily's.

Cookies as too simple

The cookies should gain their full functionality like their time to live.

Routine	http_encode	Write + for spaces and %xx for special characters
str	string	Source string
returns:	string	Resulting string

Routine	http_decode	Get spaces from + and special characters from %xx tokens
str	string	Source string
returns:	string	Resulting string

Routine	cookie	Encode a cookie
name	constr	The name of the cookie
value	constr	The data of the cookie
duration	enumerate[Browser Day Minute Week Quaterhour Hour]	Time to live
returns:	string	The text that describes cookie

Routine	tag	Create one XML tag
str	constr
returns:	string

Routine	html	Create html code from a text. By now only returns are replaced
str	constr
returns:	string

Routine	notag	Recreate a string as closely as possible
str	constr
returns:	string