Adding html to Joomla's sidebar just like wordpress's text widget

Bismillaahirrahmaanirrahiim
Need to add html script to Joomla's sidebar? Adsense? Picture? And etc that needs to add script to sidebar like wordpress's text widget. We can use html site module. You can download one of html side module here . Install it to your blog then edit it. Open modules---site modules. Find the html module show by mod_html. Edit it, change the title as you like. Put your script into html parameter and that is it. Next time you need adding scipt just cupy the html module you've had and edit it. Done