<text> is the text data you want converted to html (Required).
Changed:
< <
<html_header> is the html code you want inserted at the beginning of <html> (Optional). If not PASSed or blank, it will default to <HTML><BODY><FONT FACE=HALVETICA>
> >
<html_header> is the html code you want inserted at the beginning of <html> (Optional). If not PASSed or blank, it will default to <HTML><BODY><FONT FACE=HELVETICA>
<html_footer> is any html code you want added to the end of <html> (Optional).