var s1, s2;
function showPortal(){
	document.getElementById('Nbacker').style.display='block';
	document.getElementById('Nportal').style.display='block';
	document.getElementById('Nclose').style.display='block';
	s1=true;
}
function hidePortal(){
	document.getElementById('Nportal').style.display='none';
	document.getElementById('Nclose').style.display='none';
	s1=false;
	hideBacker();
}
function clearPortal(){
	document.getElementById('Nportal').innerHTML="";
}
function setPortal(content){
	document.getElementById('Nportal').innerHTML=content;
}
function showPortal2(){
	document.getElementById('Nbacker').style.display='block';
	document.getElementById('Nportal2').style.display='block';
	document.getElementById('Nclose2').style.display='block';
	s2=true;
}
function hidePortal2(){
	document.getElementById('Nportal2').style.display='none';
	document.getElementById('Nclose2').style.display='none';
	s2=false;
	hideBacker();
}
function clearPortal2(){
	document.getElementById('Nportal2').innerHTML="";
}
function setPortal2(content){
	document.getElementById('Nportal2').innerHTML=content;
}
function hideBacker(){
	if(!s1&&!s2){
		document.getElementById('Nbacker').style.display='none';
	}	
}