I am creating a web application(Instant Messenger). I would like to be a able to create a chat box when i click on any contact.But i want to open it in a new window(but i dont want to use window.open)..Is it possible to create a div window that can be dragged outside of a web page just like gmail chat window..(I'm not sure if a window.open can be embedded in a div object).I want this window be minimized, maximized whatsoever..and act as an independent window like any typical desktop IM...Please help..

Within a browser, the content of your web app always has to be contained within a browser window, it can't just float on the desktop, so if you want a completely independent popup, window.open is your only option. GMail chat does still use this - it just uses the window.open options to hide the menus etc.
Depending on how your site works, another option is to create fake windows within an existing webpage. There are lots of existing examples of this. One we have used in the past are RadWindows from Telerik - see the example at http://demos.telerik.com/aspnet-ajax...defaultcs.aspx

HTH
Phil