How To Exit from function or iteration? And continue with other function?

'Ex- For Exit funtion from iteration=5

Option Explicit

Dim i,a,

app()
open()

Function app()
For i=1 to 10
 a= "Test1" & i
SystemUtil.Run "iexplore.exe","www.google.com",,,3
Browser("Google").Page("Google").WebEdit("q").Set a
Browser("Google").Page("Google").WebButton("Google Search").Click
Browser("Google").Close
If i=5  Then

 Exit Function ' This Syntax is used for Quit this Function

End If

Next
End Function

Function open()
SystemUtil.Run "iexplore.exe","www.google.com",,,3
Browser("Google").Page("Google").WebEdit("q").Set "Velmuruganqa"
Browser("Google").Page("Google").WebButton("Google Search").Click
End Function