function displaySimulator(b)
{ 
	if(b) {
		document.getElementById('filter').style.display = 'block'; 
		document.getElementById('popup').style.display = 'block'; 
		//document.getElementById('background').style.display = 'block'; 
		//document.getElementById('filter').style.opacity = '0.5'; 
	}
	else {
		document.getElementById('filter').style.display = 'none'; 
		document.getElementById('popup').style.display = 'none'; 
		//document.getElementById('background').style.display = 'none'; 
		//document.getElementById('filter').style.display = '1'; 
	}
	
}