F21::
switchToChrome1(){
IfWinNotExist, ahk_class Chrome_WidgetWin_1
	Run, chrome.exe
GroupAdd, taranexplorers2, ahk_class Chrome_WidgetWin_1
if WinActive("ahk_exe chrome.exe")
	GroupActivate, taranexplorers2, r
else
	WinActivate ahk_class Chrome_WidgetWin_1 ;you have to use WinActivatebottom if you didn't create a window group.
}