check if the file is opened before uploading using javascript

[lipsa]

hello all,
1-i m uploading an excel sheet(VB/ASP.NET).before uploading i want to check if the file to be uploaded is opened or not.if opened alert the user.i want to do it at the client side(using javascript).
2-i m using the follwing connection string ,which is giving me the fiollowing error.
"Keyword not supported: 'provider'".wha ts wrong?
strConn = "Provider=Micro soft.Jet.OLEDB. 4.0;Data Source=" + _strFullPathFil eName + ";Extended Properties=""Ex cel 8.0;HDR=Yes;IME X=1"""

Regards,
lipsa

[acoder]

This wouldn't be possible with JavaScript. Perhaps some ActiveX (IE-only) in a reduced security environment might work.