ValekS, Чего там сложного?
Просто надо удалить это
<!-- Яндекс.Директ -->
<script type="text/javascript">
yandex_partner_id = 102534;
yandex_site_bg_color = 'FFFFFF';
yandex_ad_format = 'direct';
yandex_font_size = 0.9;
yandex_direct_type = 'flat';
yandex_direct_limit = 2;
yandex_direct_title_font_size = 1;
yandex_direct_links_underline = true;
yandex_direct_header_bg_color = 'FEEAC7';
yandex_direct_title_color = '0000CC';
yandex_direct_url_color = '006600';
yandex_direct_text_color = '000000';
yandex_direct_hover_color = '0066FF';
yandex_direct_favicon = true;
yandex_no_sitelinks = true;
document.write('<scr'+'ipt type="text/javascript" src="//an.yandex.ru/system/context.js"></scr'+'ipt>');
</script>Это делается так:
html.replace("<!-- Яндекс.Директ -->
<script type="text/javascript">
yandex_partner_id = 102534;
yandex_site_bg_color = 'FFFFFF';
yandex_ad_format = 'direct';
yandex_font_size = 0.9;
yandex_direct_type = 'flat';
yandex_direct_limit = 2;
yandex_direct_title_font_size = 1;
yandex_direct_links_underline = true;
yandex_direct_header_bg_color = 'FEEAC7';
yandex_direct_title_color = '0000CC';
yandex_direct_url_color = '006600';
yandex_direct_text_color = '000000';
yandex_direct_hover_color = '0066FF';
yandex_direct_favicon = true;
yandex_no_sitelinks = true;
document.write('<scr'+'ipt type="text/javascript" src="//an.yandex.ru/system/context.js"></scr'+'ipt>');
</script>", "");
Только надо заэкранировать кавычки и другие символы