I've been using a tool called Antechinus JavaScript Editor for a while now and it gets the job done pretty good I must admit.
When I Googled for JavaScript editor yesterday, Antechinus JavaScript Editor has dropped to the second place, overtaken by 1st JavaScript Editor Pro.
What so-called "1st" JavaScript Editor Pro guys have done is steal half the design from Antechinus (for example look at “calling javascript functions” or “run any piece of code with one click” – it is exactly the same).
Apart from the design they also stolen the text from the Antechinus JavaScript Editor page at http://www.c-point.com/javascript_editor.php and used it almost EXACTLY as it is on their own pages at http://www.yaldex.com/JSFactory_Pro.htm!
Pure theft and unethical, yes, but this has worked very well for Yaldex so far – they are on top of the search results.
Unfortunately this screws up legitimate companies who actually take the time to come up with new and innovative features.