How can I check if an image in a ImagePanel exist?

[Petal]

How can I check if the Image I would like to load in the ImagePanel exist?

I am using this code to show a image in the panel after selecting an item from a multilist.

try {
imagePanel1.setImageURL(new java.net.URL("

http://204.182.172.209/articlesJPG/"+multiList1.getCellText(multiList1.getSelectedRow(),

0)+".jpg&quot);

}
catch (java.net.MalformedURLException error) { }
catch(java.beans.PropertyVetoException e) { }
try {
imagePanel1.setStyle(symantec.itools.awt.ImagePanel.IMAGE_CENTERED);
}
catch(java.beans.PropertyVetoException e) { }
imagePanel1.setLayout(null);

If the image don't exist the imagePanel is blank. I would like to give the user the opportunity to add a picture if the image don't exist, but then i need to know wethever the image exist og not.

Jørn Arild Andenæs