JSEclipse
I have an ongoing project which utilises Yahoo UI’s Javascript Libraries. There are also plans of even extending the application to use ExtJS for a more powerful window/container/layout lib. In regards to these Javascript pursuits, I need a Javascript editor for Eclipse besides my almighty vim.
Eclipse Update Site:
Help -> Software Updates -> Find and Install -> New
http://download.macromedia.com/pub/labs/jseclipse/autoinstall