var str = '<td class="CDataHeader" style="width:100px;">Ф.И.О</td><td class="CDataContent" style="white-space: nowrap;">Иван Иванович</td>'; alert( str.match(/<td\s*(?:[^>])*>Ф.И.О<\/td><td\s*(?:[^>])*>([\s\S]*)<\/td>/i)[1] );