[Autohotkey] Is there a way to REALLY KNOW when a web page is loaded?

URL := "http://www.msdn.microsoft.com"
Run, %URL%, MAX
Winwait, %URL%
AHKID := WinExist("A")

; Make sure you have the Window ID of the browser instance

Ctr=0
Loop  {
   Sleep, 100

   Ctr+=1
   ControlGet, Progress, Visible,, msctls_progress321, ahk_id %AHKID%

   If (Progress=1) {
                     Ctr=0
                     Continue
                   }
  
   If (Progress=0 AND Ctr>10)
     Break
      }

MsgBox, Page Loaded Completely!

 

http://www.autohotkey.com/forum/topic13569.html&sid=dd6d5a20b38ee7dc6a650f481473b13e