Applet size and Grey Background

I have a JApplet which is displayed in a JFrame (500 * 500 px). I need run this from web page, something like if I click a button, the JFrame pops up...
If I set the width and height tags to 500, everything is OK except a big grey area in the html page.
To avoid this grey square, I set the width and height tag to 0, but the applet is invisible in the popup JFrame with Netscape6.2. (the applet is displayed in a very small area in IE5.5) When I resize the JFrame a little bit, the JApplet shows up completely. I also tried to resize the JApplet in the init() method, but this doesn't help.
Does anyone have experience on this? How can I display the JFrame with the entire applet without the grey background in html page?
Any advice would be highly appreciated.

Hi, i've heard about (but not tried, sorry) using width and height specified as % values: width=100% and height=100% filling all the browser frame...
Please tell me if it helped (I hope so),
Regards.

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Applet size and Grey Background

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