function showPopup() {
	document.getElementById('question2').style.display='block';
	var op = 0; 
	
	var si = setInterval(function timer() {
		op += 0.1;
		if(op >= 0.6) {
			clearInterval(si);
			document.getElementById('question').style.display='block';
		}
		document.getElementById('question2').style.opacity = op; 
		document.getElementById('question2').style.filter='alpha(opacity='+op*100+')';
	},30); 
}
function hidePopup() {
	document.getElementById('question').style.display='none';
	var op = 0.6; 
	
	var si = setInterval(function timer() {
		op -= 0.1;
		if(op <= 0) {
			clearInterval(si);
			document.getElementById('question2').style.display='none';
		}
		document.getElementById('question2').style.opacity = op; 
		document.getElementById('question2').style.filter='alpha(opacity='+op*100+')';
	},30); 
}