function adPanel_ToggleDisplay()
{
if(document.getElementById('listDiv').style.display=="block")
{
document.getElementById('listDiv').style.display="none";
document.getElementById('link_European').className="accordionArrow_off";
}
else
{
document.getElementById('listDiv').style.display="block";
document.getElementById('link_European').className="accordionArrow_on";

}
}