function swapLg(gallname,picname) {
document.getElementById('largephoto').src="art/" + picname + ".jpg"
	}

function hideCopy() {
	document.getElementById('introCopy').style.display='none';
}

function hideAllSubGalls() {
	var subgall_names=new Array(10)
	subgall_names[0]="retaggio"
	for (i=0; i<subgall_names.length; i++) {
		document.getElementById(subgall_names[i]).style.display='none';
	}
}
	
function showGall(gallname,firstpicname) {
	hideCopy();
	hideAllSubGalls();
	swapLg(gallname,firstpicname);
	document.getElementById(gallname).style.display='';
}