function showPan() {
	document.getElementById("panimage").style.display='block';
	document.getElementById("panopt").style.display='none';
	document.getElementById("panopt_off").style.display='block';
	document.getElementById("contentbanner").style.visibility='hidden';
}
function hidePan() {
	document.getElementById("panimage").style.display='none';
	document.getElementById("panopt").style.display='block';
	document.getElementById("panopt_off").style.display='none';
	document.getElementById("contentbanner").style.visibility='visible';
}