How to create a skin for chat window.
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	1. Folder/files structure.
	
		myskin/
			chat.tpl					modern browser Ajax window
			chatsimple.tpl				compatibility mode, reload to refresh thread
			nochat.tpl					chat page for VERY old browsers (shows the list of supported software)
			leavemessage.tpl			leave message form for offline times
			leavemessagesent.tpl		leave message sent page
			mail.tpl					mail thread form
			mailsent.tpl				mail was sent page 

			(next templates are visible only to agent)		
			error.tpl					page to report serious problems
			redirect.tpl				list of available agents to redirect thread to
			redirected.tpl				successfully redirected