function expand(which)
{

	
	var thediv= eval(which + ".style");
	var theimage = eval("document.images['img" + which + "']");
	
	if (thediv.display == 'block')
		{
		thediv.display = 'none';
		theimage.src = "images/plus.gif";
		theimage.alt = "פתח";
		}
	else
		{
		thediv.display = 'block';
		theimage.src = "images/minus.gif";
		theimage.alt = "סגור";
		}
	
}