I have a couple of suggestions. First use Panel instead of applet  for you
image button. Second, make sure that the Image is loading correctly. Put
some print statements in the catch clause to see if possibly you are
having an exception. Let me know what you find.

I found the problem.
I've forgotten to Launch init() method of my button class

public void  init()
{
Container ct=getContentPane();
tom=new myGraphic();
tom.init();// <-- in fact i got a NullPointer Exception
ct.add(tom);
tom.addMouseListener(this);
}

Now, i think i have another problem, my applet  run correctly with JBuiler 7
appletViewer, but not with Explorers.
I think i have a security problem.

Are you trying to read the image from the HDD. If you
are doing this then ypu will run into Java Security
Sandbox issues.
You need to load  the image from a webserver using the
URL class. Please confirm that this is the security
problem and that you are not opening nay sockets in
your applet  codes.

You are using swing classes with the simple  IE VM?
As I know swing is not included in the IE's VM.

Yes this is an access denied.
I remember java  is a secure environment :)
I'm going to use URL class. My Java Book is not very clear about this. It alway
explain how to draw a circle  but loading pictures...

If you know the exact URL for the image you wish to
load, you can load  it with the getImage() method:

URL imageURL = new URL("http://www.xyz.com/logo.gif");
java.awt.Image img = this.getImage(imageURL);

You can compress this into one line as follows
Image img = this.getImage(new
URL("http://www.xyz.com/logo.gif"));

The getImage() method is provided by
java.applet.Applet. The URL class  is provided by
java.net.URL. Be sure to import  it.

Yes i'm using swing in IE VM and Netscape4.7 VM.

in fact, this code  doesn't run too :
public void  init() {
URL lurl;
String path= getDocumentBase().toString() + "hautG.gif";
showStatus("ok : " + path);

try
{

lurl=new URL(path);
ImageIcon ic=new ImageIcon(lurl);

}
catch(MalformedURLException malformedurlexception)
{
showStatus(getCodeBase().toString());
}


JLabel jLabel1 = new JLabel(ic);
jLabel1.setText(path);

this.setSize(new Dimension(400,300));
Container ct=getContentPane();
ct.setLayout(new FlowLayout());
ct.add(jLabel1);

Applet doesn't run into try statement
My label contains the string i want but no pictures.

Are Swing classes responsable ?

Now, i only use applet  instead of Swing and i reach pictures using URL
class.
But, the main  idea of my project is to create  an "OwnItemClass".
Some instances  of my "OwnItemClass" will be created.
I try this :


//Calling function
public class  myMenu extends Applet {
img tom;
Image t;
public myMenu() {
}
public void  init() {
tom=new img();
tom.init();
t=tom.ownItem();// ownItem() should return an Image object i would paint
in a paint function

}
//here would be paint function...
}


class img extends Applet {
URL url = null;
Image C3;

public Image ownItem() {

try {
url = new URL(getDocumentBase(),"../img/hautG.gif");
}
catch(MalformedURLException malformedurlexception) {}
C3 = getImage(url);
return C3;
}

}

It doesn't work.
I made some debugging seachs and i see that getDocumentBase, in this class
was certainly unknown.
The exact error is a null pointer return:

java.lang.NullPointerException
at java.applet.Applet.getDocumentBase(Applet.java:95)
at javamenu.img.ownItem(myMenu.java:32)
at javamenu.myMenu.init(myMenu.java:17)
at com.borland.jbuilder.runtime.applet.AppletTestbed.startApplet(Unknown
Source)
at com.borland.jbuilder.runtime.applet.AppletTestbed.main(Unknown Source)

What could i do in order to succeed in creating my own class
N.B : I already this kind of work  in javascript
(http://gmanouvrier.free.fr/cuisines)
I would change my java  script menu  into a good own java menu.