Accessing image control properties

Hello there,


I am writing my own captcha generator page using an aspx form that generates an image.


In the form that displays the captcha I have the following img tag -



<asp:Image ID="Image1" runat="server"  ImageUrl="~/captcha.aspx" />


and things works well.


What I want to do is use the image tag with width and height specified properties -


<asp:Image ID="Image1" runat="server"  width="100" height="50" ImageUrl="~/captcha.aspx" />


and in my captcha.aspx read the width and height properties in my captcha generator vb script.


How can I access the width and height from my captcha generator vb script?


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