I have found a little javascript that expand and collapse on
click on the image but it doesn't work in netscape. I'm unable
to create a click event on an image it won't work.

So on IE when i click on the image the table expand or collapse
and the image change as well a forward img if it is collapsed
end a down img if it is expanded.

I hope some one will be able to help me i'm just beginning with
javascript!

Here is the code i used:

Code:
<SCRIPT LANGUAGE="Javascript" RUNAT="client">
function SectionClick (DOMEvent)
{
	var parentID;
	var child;
	var parentImage;
	if (standardDOM)
	{
		parentID = DOMEvent.target.id;
	}
	else
	{
		parentID = window.event.srcElement.id;
	}
	child = document.all ("Subthread-" + parentID);
	if (child != null)
	{
		parentImage = document.all (parentID);
		if (child.style.display == "none")
		{
			child.style.display = "block";
			parentImage.src = "images/arcdown.jpg";
			parentImage.alt = "Cacher les questions";
		}
		else
		{
			child.style.display = "none";
			parentImage.src = "images/arcffw.jpg";
			parentImage.alt = "Voir les questions";
		}
	}
	return true;
}
</SCRIPT>


<BODY>
<TABLE>
<TR>
	<TD>
		<IMG SRC="images/arcffw.jpg" ID="1" NAME="1" onclick="SectionClick (event); return false;" />
	</TD>
	<TD>
		<SPAN>Text</SPAN>
	</TD>
</TR>
</TABLE><DIV ID="Subthread-1" STYLE="margin-left:0;display:none;">
<TABLE>
<TR>
	<TD WIDTH="10">
	</TD>
	<TD VALIGN="top" ALIGN="RIGHT">
		<IMG SRC="images/arcffw.jpg" ID="1.1" NAME="1.1" onclick="SectionClick (event); return false;">
	</TD>
	<TD WIDTH="80%">
		<SPAN>Sub Section 1</SPAN>
	</TD>
</TR>
</TABLE><DIV ID="Subthread-1.1" STYLE="margin-left:0;display:none;">
<TABLE>
<TR>
	<TD VALIGN="top">
	</TD>
	<TD VALIGN="top">
	</TD>
	<TD>
		<SPAN>Sub Section 2</SPAN>
	</TD>
</TR>
</TABLE></DIV></DIV>
</BODY>

Thanks!