        valid_elements : ""
            +"a[accesskey|charset|class|coords|dir<ltr?rtl|href|hreflang|id|lang|name|onblur|onclick|ondblclick|onfocus|onkeydown|onkeypress|onkeyup|onmousedown|onmousemove|onmouseout|onmouseover|onmouseup|rel|rev|shape<circle?default?poly?rect|style|tabindex|title|target|type],"
                +"abbr[class|dir<ltr?rtl|id|lang|onclick|ondblclick|onkeydown|onkeypress|onkeyup|onmousedown|onmousemove|onmouseout|onmouseover|onmouseup|style|title],"
            +"acronym[class|dir<ltr?rtl|id|id|lang|onclick|ondblclick|onkeydown|onkeypress|onkeyup|onmousedown|onmousemove|onmouseout|onmouseover|onmouseup|style|title],"
            +"address[class|align|dir<ltr?rtl|id|lang|onclick|ondblclick|onkeydown|onkeypress|onkeyup|onmousedown|onmousemove|onmouseout|onmouseover|onmouseup|style|title],"
            +"applet[align<bottom?left?middle?right?top|alt|archive|class|code|codebase|height|hspace|id|name|object|style|title|vspace|width],"
            +"area[accesskey|alt|class|coords|dir<ltr?rtl|href|id|lang|nohref<nohref|onblur|onclick|ondblclick|onfocus|onkeydown|onkeypress|onkeyup|onmousedown|onmousemove|onmouseout|onmouseover|onmouseup|shape<circle?default?poly?rect|style|tabindex|title|target],"
            +"base[href|target],"
            +"basefont[color|face|id|size],"
            +"bdo[class|dir<ltr?rtl|id|lang|style|title],"
            +"big[class|dir<ltr?rtl|id|lang|onclick|ondblclick|onkeydown|onkeypress|onkeyup|onmousedown|onmousemove|onmouseout|onmouseover|onmouseup|style|title],"
            +"blockquote[cite|class|dir<ltr?rtl|id|lang|onclick|ondblclick|onkeydown|onkeypress|onkeyup|onmousedown|onmousemove|onmouseout|onmouseover|onmouseup|style|title],"
            +"body[alink|background|bgcolor|class|dir<ltr?rtl|id|lang|link|onclick|ondblclick|onkeydown|onkeypress|onkeyup|onload|onmousedown|onmousemove|onmouseout|onmouseover|onmouseup|onunload|style|title|text|vlink],"
            +"br[class|clear<all?left?none?right|id|style|title],"
            +"button[accesskey|class|dir<ltr?rtl|disabled<disabled|id|lang|name|onblur|onclick|ondblclick|onfocus|onkeydown|onkeypress|onkeyup|onmousedown|onmousemove|onmouseout|onmouseover|onmouseup|style|tabindex|title|type|value],"
            +"caption[align<bottom?left?right?top|class|dir<ltr?rtl|id|lang|onclick|ondblclick|onkeydown|onkeypress|onkeyup|onmousedown|onmousemove|onmouseout|onmouseover|onmouseup|style|title],"
            +"center[class|dir<ltr?rtl|id|lang|onclick|ondblclick|onkeydown|onkeypress|onkeyup|onmousedown|onmousemove|onmouseout|onmouseover|onmouseup|style|title],"
            +"cite[class|dir<ltr?rtl|id|lang|onclick|ondblclick|onkeydown|onkeypress|onkeyup|onmousedown|onmousemove|onmouseout|onmouseover|onmouseup|style|title],"
            +"code[class|dir<ltr?rtl|id|lang|onclick|ondblclick|onkeydown|onkeypress|onkeyup|onmousedown|onmousemove|onmouseout|onmouseover|onmouseup|style|title],"
            +"col[align<center?char?justify?left?right|char|charoff|class|dir<ltr?rtl|id|lang|onclick|ondblclick|onkeydown|onkeypress|onkeyup|onmousedown|onmousemove|onmouseout|onmouseover|onmouseup|span|style|title|valign<baseline?bottom?middle?top|width],"
            +"colgroup[align<center?char?justify?left?right|char|charoff|class|dir<ltr?rtl|id|lang|onclick|ondblclick|onkeydown|onkeypress|onkeyup|onmousedown|onmousemove|onmouseout|onmouseover|onmouseup|span|style|title|valign<baseline?bottom?middle?top|width],"
            +"dd[class|dir<ltr?rtl|id|lang|onclick|ondblclick|onkeydown|onkeypress|onkeyup|onmousedown|onmousemove|onmouseout|onmouseover|onmouseup|style|title],"
            +"del[cite|class|datetime|dir<ltr?rtl|id|lang|onclick|ondblclick|onkeydown|onkeypress|onkeyup|onmousedown|onmousemove|onmouseout|onmouseover|onmouseup|style|title],"
            +"dfn[class|dir<ltr?rtl|id|lang|onclick|ondblclick|onkeydown|onkeypress|onkeyup|onmousedown|onmousemove|onmouseout|onmouseover|onmouseup|style|title],"
            +"dir[class|compact<compact|dir<ltr?rtl|id|lang|onclick|ondblclick|onkeydown|onkeypress|onkeyup|onmousedown|onmousemove|onmouseout|onmouseover|onmouseup|style|title],"
            +"div[align<center?justify?left?right|class|dir<ltr?rtl|id|lang|onclick|ondblclick|onkeydown|onkeypress|onkeyup|onmousedown|onmousemove|onmouseout|onmouseover|onmouseup|style|title],"
            +"dl[class|compact<compact|dir<ltr?rtl|id|lang|onclick|ondblclick|onkeydown|onkeypress|onkeyup|onmousedown|onmousemove|onmouseout|onmouseover|onmouseup|style|title],"
            +"dt[class|dir<ltr?rtl|id|lang|onclick|ondblclick|onkeydown|onkeypress|onkeyup|onmousedown|onmousemove|onmouseout|onmouseover|onmouseup|style|title],"
            +"em/i[class|dir<ltr?rtl|id|lang|onclick|ondblclick|onkeydown|onkeypress|onkeyup|onmousedown|onmousemove|onmouseout|onmouseover|onmouseup|style|title],"
            +"fieldset[class|dir<ltr?rtl|id|lang|onclick|ondblclick|onkeydown|onkeypress|onkeyup|onmousedown|onmousemove|onmouseout|onmouseover|onmouseup|style|title],"
            +"font[class|color|dir<ltr?rtl|face|id|lang|size|style|title],"
            +"form[accept|accept-charset|action|class|dir<ltr?rtl|enctype|id|lang|method<get?post|name|onclick|ondblclick|onkeydown|onkeypress|onkeyup|onmousedown|onmousemove|onmouseout|onmouseover|onmouseup|onreset|onsubmit|style|title|target],"
            +"frame[class|frameborder|id|longdesc|marginheight|marginwidth|name|noresize<noresize|scrolling<auto?no?yes|src|style|title],"
            +"frameset[class|cols|id|onload|onunload|rows|style|title],"
            +"h1[align<center?justify?left?right|class|dir<ltr?rtl|id|lang|onclick|ondblclick|onkeydown|onkeypress|onkeyup|onmousedown|onmousemove|onmouseout|onmouseover|onmouseup|style|title],"
            +"h2[align<center?justify?left?right|class|dir<ltr?rtl|id|lang|onclick|ondblclick|onkeydown|onkeypress|onkeyup|onmousedown|onmousemove|onmouseout|onmouseover|onmouseup|style|title],"
            +"h3[align<center?justify?left?right|class|dir<ltr?rtl|id|lang|onclick|ondblclick|onkeydown|onkeypress|onkeyup|onmousedown|onmousemove|onmouseout|onmouseover|onmouseup|style|title],"
            +"h4[align<center?justify?left?right|class|dir<ltr?rtl|id|lang|onclick|ondblclick|onkeydown|onkeypress|onkeyup|onmousedown|onmousemove|onmouseout|onmouseover|onmouseup|style|title],"
            +"h5[align<center?justify?left?right|class|dir<ltr?rtl|id|lang|onclick|ondblclick|onkeydown|onkeypress|onkeyup|onmousedown|onmousemove|onmouseout|onmouseover|onmouseup|style|title],"
            +"h6[align<center?justify?left?right|class|dir<ltr?rtl|id|lang|onclick|ondblclick|onkeydown|onkeypress|onkeyup|onmousedown|onmousemove|onmouseout|onmouseover|onmouseup|style|title],"
            +"head[dir<ltr?rtl|lang|profile],"
            +"hr[align<center?left?right|class|dir<ltr?rtl|id|lang|noshade<noshade|onclick|ondblclick|onkeydown|onkeypress|onkeyup|onmousedown|onmousemove|onmouseout|onmouseover|onmouseup|size|style|title|width],"
            +"html[dir<ltr?rtl|lang|version],"
            +"iframe[align<bottom?left?middle?right?top|class|frameborder|height|id|longdesc|marginheight|marginwidth|name|scrolling<auto?no?yes|src|style|title|width],"
            +"img[align<bottom?left?middle?right?top|alt|border|class|dir<ltr?rtl|height|hspace|id|ismap<ismap|lang|longdesc|name|onclick|ondblclick|onkeydown|onkeypress|onkeyup|onmousedown|onmousemove|onmouseout|onmouseover|onmouseup|src|style|title|usemap|vspace|width],"
            +"input[accept|accesskey|align<bottom?left?middle?right?top|alt|checked<checked|class|dir<ltr?rtl|disabled<disabled|id|ismap<ismap|lang|maxlength|name|onblur|onclick|ondblclick|onfocus|onkeydown|onkeypress|onkeyup|onmousedown|onmousemove|onmouseout|onmouseover|onmouseup|onselect|readonly<readonly|size|src|style|tabindex|title|type<button?checkbox?file?hidden?image?password?radio?reset?submit?text|usemap|value],"
            +"ins[cite|class|datetime|dir<ltr?rtl|id|lang|onclick|ondblclick|onkeydown|onkeypress|onkeyup|onmousedown|onmousemove|onmouseout|onmouseover|onmouseup|style|title],"
            +"isindex[class|dir<ltr?rtl|id|lang|prompt|style|title],"
            +"kbd[class|dir<ltr?rtl|id|lang|onclick|ondblclick|onkeydown|onkeypress|onkeyup|onmousedown|onmousemove|onmouseout|onmouseover|onmouseup|style|title],"
            +"label[accesskey|class|dir<ltr?rtl|for|id|lang|onblur|onclick|ondblclick|onfocus|onkeydown|onkeypress|onkeyup|onmousedown|onmousemove|onmouseout|onmouseover|onmouseup|style|title],"
            +"legend[align<bottom?left?right?top|accesskey|class|dir<ltr?rtl|id|lang|onclick|ondblclick|onkeydown|onkeypress|onkeyup|onmousedown|onmousemove|onmouseout|onmouseover|onmouseup|style|title],"
            +"li[class|dir<ltr?rtl|id|lang|onclick|ondblclick|onkeydown|onkeypress|onkeyup|onmousedown|onmousemove|onmouseout|onmouseover|onmouseup|style|title|type|value],"
            +"link[charset|class|dir<ltr?rtl|href|hreflang|id|lang|media|onclick|ondblclick|onkeydown|onkeypress|onkeyup|onmousedown|onmousemove|onmouseout|onmouseover|onmouseup|rel|rev|style|title|target|type],"
            +"map[class|dir<ltr?rtl|id|lang|name|onclick|ondblclick|onkeydown|onkeypress|onkeyup|onmousedown|onmousemove|onmouseout|onmouseover|onmouseup|style|title],"
            +"menu[class|compact<compact|dir<ltr?rtl|id|lang|onclick|ondblclick|onkeydown|onkeypress|onkeyup|onmousedown|onmousemove|onmouseout|onmouseover|onmouseup|style|title],"
            +"meta[content|dir<ltr?rtl|http-equiv|lang|name|scheme],"
            +"noframes[class|dir<ltr?rtl|id|lang|onclick|ondblclick|onkeydown|onkeypress|onkeyup|onmousedown|onmousemove|onmouseout|onmouseover|onmouseup|style|title],"
            +"noscript[class|dir<ltr?rtl|id|lang|style|title],"
            +"object[align<bottom?left?middle?right?top|archive|border|class|classid|codebase|codetype|data|declare|dir<ltr?rtl|height|hspace|id|lang|name|onclick|ondblclick|onkeydown|onkeypress|onkeyup|onmousedown|onmousemove|onmouseout|onmouseover|onmouseup|standby|style|tabindex|title|type|usemap|vspace|width],"
            +"ol[class|compact<compact|dir<ltr?rtl|id|lang|onclick|ondblclick|onkeydown|onkeypress|onkeyup|onmousedown|onmousemove|onmouseout|onmouseover|onmouseup|start|style|title|type],"
            +"optgroup[class|dir<ltr?rtl|disabled<disabled|id|label|lang|onclick|ondblclick|onkeydown|onkeypress|onkeyup|onmousedown|onmousemove|onmouseout|onmouseover|onmouseup|style|title],"
            +"option[class|dir<ltr?rtl|disabled<disabled|id|label|lang|onclick|ondblclick|onkeydown|onkeypress|onkeyup|onmousedown|onmousemove|onmouseout|onmouseover|onmouseup|selected<selected|style|title|value],"
            +"p[align<center?justify?left?right|class|dir<ltr?rtl|id|lang|onclick|ondblclick|onkeydown|onkeypress|onkeyup|onmousedown|onmousemove|onmouseout|onmouseover|onmouseup|style|title],"
            +"param[id|name|type|value|valuetype<DATA?OBJECT?REF],"
            +"pre/listing/plaintext/xmp[align|class|dir<ltr?rtl|id|lang|onclick|ondblclick|onkeydown|onkeypress|onkeyup|onmousedown|onmousemove|onmouseout|onmouseover|onmouseup|style|title|width],"
            +"q[cite|class|dir<ltr?rtl|id|lang|onclick|ondblclick|onkeydown|onkeypress|onkeyup|onmousedown|onmousemove|onmouseout|onmouseover|onmouseup|style|title],"
            +"s[class|dir<ltr?rtl|id|lang|onclick|ondblclick|onkeydown|onkeypress|onkeyup|onmousedown|onmousemove|onmouseout|onmouseover|onmouseup|style|title],"
            +"samp[class|dir<ltr?rtl|id|lang|onclick|ondblclick|onkeydown|onkeypress|onkeyup|onmousedown|onmousemove|onmouseout|onmouseover|onmouseup|style|title],"
            +"script[charset|defer|language|src|type],"
            +"select[class|dir<ltr?rtl|disabled<disabled|id|lang|multiple<multiple|name|onblur|onchange|onclick|ondblclick|onfocus|onkeydown|onkeypress|onkeyup|onmousedown|onmousemove|onmouseout|onmouseover|onmouseup|size|style|tabindex|title],"
            +"small[class|dir<ltr?rtl|id|lang|onclick|ondblclick|onkeydown|onkeypress|onkeyup|onmousedown|onmousemove|onmouseout|onmouseover|onmouseup|style|title],"
            +"span[align<center?justify?left?right|class|dir<ltr?rtl|id|lang|onclick|ondblclick|onkeydown|onkeypress|onkeyup|onmousedown|onmousemove|onmouseout|onmouseover|onmouseup|style|title],"
            +"strike[class|class|dir<ltr?rtl|id|lang|onclick|ondblclick|onkeydown|onkeypress|onkeyup|onmousedown|onmousemove|onmouseout|onmouseover|onmouseup|style|title],"
            +"strong/b[class|dir<ltr?rtl|id|lang|onclick|ondblclick|onkeydown|onkeypress|onkeyup|onmousedown|onmousemove|onmouseout|onmouseover|onmouseup|style|title],"
            +"style[dir<ltr?rtl|lang|media|title|type],"
            +"sub[class|dir<ltr?rtl|id|lang|onclick|ondblclick|onkeydown|onkeypress|onkeyup|onmousedown|onmousemove|onmouseout|onmouseover|onmouseup|style|title],"
            +"sup[class|dir<ltr?rtl|id|lang|onclick|ondblclick|onkeydown|onkeypress|onkeyup|onmousedown|onmousemove|onmouseout|onmouseover|onmouseup|style|title],"
            +"table[align<center?left?right|bgcolor|border|cellpadding|cellspacing|class|dir<ltr?rtl|frame|height|id|lang|onclick|ondblclick|onkeydown|onkeypress|onkeyup|onmousedown|onmousemove|onmouseout|onmouseover|onmouseup|rules|style|summary|title|width],"
            +"tbody[align<center?char?justify?left?right|char|class|charoff|dir<ltr?rtl|id|lang|onclick|ondblclick|onkeydown|onkeypress|onkeyup|onmousedown|onmousemove|onmouseout|onmouseover|onmouseup|style|title|valign<baseline?bottom?middle?top],"
            +"td[abbr|align<center?char?justify?left?right|axis|bgcolor|char|charoff|class|colspan|dir<ltr?rtl|headers|height|id|lang|nowrap<nowrap|onclick|ondblclick|onkeydown|onkeypress|onkeyup|onmousedown|onmousemove|onmouseout|onmouseover|onmouseup|rowspan|scope<col?colgroup?row?rowgroup|style|title|valign<baseline?bottom?middle?top|width],"
            +"textarea[accesskey|class|cols|dir<ltr?rtl|disabled<disabled|id|lang|name|onblur|onclick|ondblclick|onfocus|onkeydown|onkeypress|onkeyup|onmousedown|onmousemove|onmouseout|onmouseover|onmouseup|onselect|readonly<readonly|rows|style|tabindex|title],"
            +"tfoot[align<center?char?justify?left?right|char|charoff|class|dir<ltr?rtl|id|lang|onclick|ondblclick|onkeydown|onkeypress|onkeyup|onmousedown|onmousemove|onmouseout|onmouseover|onmouseup|style|title|valign<baseline?bottom?middle?top],"
            +"th[abbr|align<center?char?justify?left?right|axis|bgcolor|char|charoff|class|colspan|dir<ltr?rtl|headers|height|id|lang|nowrap<nowrap|onclick|ondblclick|onkeydown|onkeypress|onkeyup|onmousedown|onmousemove|onmouseout|onmouseover|onmouseup|rowspan|scope<col?colgroup?row?rowgroup|style|title|valign<baseline?bottom?middle?top|width],"
            +"thead[align<center?char?justify?left?right|char|charoff|class|dir<ltr?rtl|id|lang|onclick|ondblclick|onkeydown|onkeypress|onkeyup|onmousedown|onmousemove|onmouseout|onmouseover|onmouseup|style|title|valign<baseline?bottom?middle?top],"
            +"title[dir<ltr?rtl|lang],"
            +"tr[abbr|align<center?char?justify?left?right|bgcolor|char|charoff|class|rowspan|dir<ltr?rtl|id|lang|onclick|ondblclick|onkeydown|onkeypress|onkeyup|onmousedown|onmousemove|onmouseout|onmouseover|onmouseup|style|title|valign<baseline?bottom?middle?top],"
            +"tt[class|dir<ltr?rtl|id|lang|onclick|ondblclick|onkeydown|onkeypress|onkeyup|onmousedown|onmousemove|onmouseout|onmouseover|onmouseup|style|title],"
            +"u[class|dir<ltr?rtl|id|lang|onclick|ondblclick|onkeydown|onkeypress|onkeyup|onmousedown|onmousemove|onmouseout|onmouseover|onmouseup|style|title],"
            +"ul[class|compact<compact|dir<ltr?rtl|id|lang|onclick|ondblclick|onkeydown|onkeypress|onkeyup|onmousedown|onmousemove|onmouseout|onmouseover|onmouseup|style|title|type],"
            +"var[class|dir<ltr?rtl|id|lang|onclick|ondblclick|onkeydown|onkeypress|onkeyup|onmousedown|onmousemove|onmouseout|onmouseover|onmouseup|style|title]"
