A js program to search the scratch wiki.

swiki.js

var searchterm = encodeURI(prompt("Enter your search term")); 
if searchterm = null {
  console.log("Error: null is invalid input.")
} else {
var url = "http://wiki.scratch.mit.edu/w/index.php?title=Special%3ASearch&profile=default&search=" + searchterm + "&fulltext=Search"; 
window.open(url);
}