function toggle(id,dg)
{
	details=id+"expanded"+dg
	summary=id+"collapsed"+dg
	link=id+"link"+dg

	if (document.getElementById(details).style.display != 'block')
    {
		document.getElementById(details).style.display = 'block';
		document.getElementById(details).style.visibility = 'visible';
		document.getElementById(summary).style.display = 'none';
		document.getElementById(summary).style.visibility = 'hidden';
		document.getElementById(link).src = "../images/minus.gif";
    }
    else
    {
		document.getElementById(details).style.display = 'none';
		document.getElementById(details).style.visibility = 'hidden';
		document.getElementById(summary).style.display = 'block';
		document.getElementById(summary).style.visibility = 'visible';
		document.getElementById(link).src = "../images/plus.gif";
     }
}