Placing an add to favourites button on your website is another great way to obtain repeat traffic. However you must keep updating your website to give users a reason to come back and visit your website using thier favourites list.
To get this Javascript Code on your website and give your users an option to click on the button and add them to thier favourites, simply copy and paste the following javascript code into your web editor.
<FORM>
<INPUT TYPE="button" VALUE="Add to Favorites" onClick='window.external.AddFavorite(location.href, document.title);'>
</FORM>