function big(lyr) { 
	document.all[lyr].style.display='block'; 
}
function small(lyr) { 
		document.all[lyr].style.display='none'; 
}
function smallmenu(lyr) { 
	if (document.getElementById([lyr]).style.display=='block') {
		document.getElementById([lyr]).style.display='none'; 
	} else {
		document.getElementById([lyr]).style.display='block'; 
	}
}