Upload image to webserver using asp fileupload control
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I am developing web application in asp.net using language c# in code-behind. I am trying to upload the image by using the file upload control to my web server.
I am using using windows server that have parallels plesk 9.5.4. 
My code works perfectly in the localserver, but when I host the application, then error message like "Permission denied to httpdocs/images/xyz.jpg" shows.

I want to upload any image file to my web sever location "httpdocs://images/".
Is there any way to solve the problem? Or how can I set the permission to the directory in plesk panel? Thanks in advance.