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I have a framework written in VBScript. Inside some function in this framework, a parameter of the function is checked for Nothing in an If statement and then some actions are executed. Code that uses the framework is written in JavaScript. So I need to pass Nothing to the function to perform some actions. In Internet Explorer 8 and earlier versions, the following approach worked: <script type="text/vbscript"> Function Test(val) If (IsNull(val)) Then Test = "Null" ElseIf (IsObject(val)) Then If (val Is Nothing) Then Test = "Nothing" End If End If End Function Dim jsNothing Set jsNothing = Nothing msgBox(Test(jsNothing)) msgBox(Test(Null)) </script> <script type="text/javascript"> alert(Test(jsNothing)); </script> In Internet Explorer before version 9, the output will: Nothing, Null, Nothing. In Internet Explorer 9 : Nothing, Null, Null. How can I pass Nothing from JavaScript to VBScript in Internet Explorer 9? There is an example of a framework function. I can not change it, because it is widely used in application. Function ExampleFunction(val) If (val Is Nothing) Then ExampleFunction = 1 Else ExampleFunction = 0 End If End Function

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