Full FlashMX 2004 rule set:
The following will validate that the page complies fully with the flashMX 2004 specification.
valid_elements : “”
+”a[href|target],”
+”b,”
+”br,”
+”font[color|face|size],”
+”img[src|id|width|height|align|hspace|vspace],”
+”i,”
+”li,”
+”p[align|class],”
+”h1,”
+”h2,”
+”h3,”
+”h4,”
+”h5,”
+”h6,”
+”span[class],”
+”textformat[blockindent|indent|leading|leftmargin|rightmargin|tabstops],”
+”u”
add custom buttons http://wiki.moxiecode.com/index.php/TinyMCE:Configuration/theme_advanced_buttons_1_n