Spookmarklet

What exactly is Spookmarklet? Spookmarklet, as its name suggests, is an easily spookable bookmarklet. It hides (i.e. closes) whenever you try to talk to it by inputting something into its text field and clicking OK. As I am a noob at coding, especially Javascript, I drew my inspiration for this bookmarklet by studying the source code of JS.dos "Take Note" bookmarklet. What do you do to play with Spookmarklet? Download the file "index.html" available under the downloads section.Click on the file ...