Automatically screenshot webpage with AppleScript

AppleScript-chrome-screenshot

-- set file name
set fileNames to "webshot-googleAnalytics"
tell application "Google Chrome"
	-- open window with secret mode, if with normal mode then use {mode:"normal"}
	set aWin to make new window with properties {mode:"normal"}
	tell aWin
		-- open new tab and set URL
		set newTab to make new tab with properties {URL:"https://www.google.com/analytics/web/?et=&authuser=#report/visitors-overview/a38108925w74194420p76615924/"}
		tell active tab
			
			repeat -- wait completion of loading
				set curStat to loading
				if curStat = false then exit repeat
				delay 0.1
			end repeat
			tell application "Google Chrome" to activate
			delay 3.0
			--full screen
			tell application "System Events"
				keystroke "f" using {command down, shift down}
			end tell
			
		end tell
		delay 6.0
		set saveDir to "Macintosh HD:Users:cvson:Dropbox:Public:vilib-ana:"
		set picPath to ((POSIX path of saveDir) & fileNames & ".jpg") as string
		
		
		--screencapture
		do shell script "screencapture -tjpg " & quoted form of picPath
	end tell
	close aWin
end tell