Probably yes. Have you seen screen cast o matic .com? They allow video recording without installing any plugin just visiting their website. So if that can be do

Probably yes. Have you seen screen cast o matic .com? They allow video recording without installing any plugin just visiting their website. So if that can be done then yes Screen sharing too. Sorry I exactly dont know how do they do it. Please try out. They use some kind of Java plugin (not alone Java Script).