Notice
This page show a previous version of the articleA bookmarklet is a relatively short piece of JavaScript code (of perhaps 100 to 2000 characters in length) that the browser runs on the current page. It begins with "javascript:" instead of "http://". Otherwise, you can treat it just like any standard bookmark. For instance, in Firefox, you can keep a bookmarklet together with your other bookmarks on the bookmark bar.
Whereas a user script is typically installed from a site such as http://userscripts.org, bookmarklets can be saved by whichever means you use to create a bookmark. Simply replace the "Location" or "URL" field by the bookmarklet string.
Tatoeba bookmarklets
The following bookmarklet (author: AlanF_US), which will operate on any Tatoeba page (i.e., a page beginning with the string "http://tatoeba.org"), will let you link two sentences by copying their IDs or URLs into fields. It is based on a bookmark by Zifre, but it has the following advantages: - It does not require you to be on a page that shows one of the sentences. In fact, you can be on any Tatoeba page, such as a sentence list. - It will accept not only a sentence number (e.g., "1000000"), but a full sentence URL (e.g., "http://tatoeba.org/eng/sentences/show/1000000"). Since right-clicking on a link to a sentence and choosing "Copy Link Location" (or its equivalent in your browser) will give you a full URL, this saves you work because you don't need to trim the leading part of the URL before submitting it.
javascript:if(location.href.search(/tatoeba.org\//)!=-1){var%20prt="Enter%20the%20number%20or%20URL%20of%20the%20";var%20sen="%20sentence";var%20a=window.prompt(prt+"first"+sen,"");if(a!=null){var%20pat=/(http:\/\/tatoeba.org\/[a-z]{3}\/sentences\/show\/)?([1-9][0-9]*)/;var%20res=a.match(pat);if(res!=null){var%20anum=res[2];var%20b=window.prompt(prt+"second"+sen,"");if(b!=null){res=b.match(pat);if(res!=null){var%20bnum=res[2];c="http://tatoeba.org/eng/links/add"+"/"+anum+"/"+bnum;location.href=c;}}}}}
See also
See the Wikipedia page on bookmarklets or this short introduction for more details on bookmarklets.