function winkPresentation(file) {
	window.open(file,'Wink','resizable=1,scrollbars=1');
}

function show(divID) {
	if (document.getElementById) // DOM3 = IE5, NS6
		document.getElementById(''+divID+'').style.visibility = 'visible';
	else if (document.all) // IE 4
		document.all[divID].style.visibility = 'visible';
	else if (document.layers && document.layers[divID] != null) // Netscape 4
		document.layers[divID].visibility = 'visible';
}

function hide(divID) {
	if (document.getElementById) // DOM3 = IE5, NS6
		document.getElementById(''+divID+'').style.visibility = 'hidden';
	else if (document.all) // IE 4
		document.all[divID].style.visibility = 'hidden';
	else if (document.layers && document.layers[divID] != null) // Netscape 4
		document.layers[divID].visibility = 'hidden';
}