function show(which)
{
if(document.getElementById(which).style.display=='none')
	{
	collapseList('list1','2','2');
	document.getElementById('list1').style.display='none';
	collapseList('list2','1','1');
	document.getElementById('list2').style.display='none';
	document.getElementById(which).style.display='block';
	}
else
	{
	collapseList('list1','2');
	document.getElementById('list1').style.display='none';
	collapseList('list2','1');
	document.getElementById('list2').style.display='none';	
	document.getElementById(which).style.display='none';
	}
}

function showSub(List,Num,Max)
{
if((document.getElementById(List).style.display=='block')&&(document.getElementById(List + '-' + Num).style.display=='none'))
	{
	collapseList(List,Num,Max)
	document.getElementById(List).style.display='block';
	document.getElementById(List + '-' + Num).style.display='block';
	}	
else
	{
	collapseList(List,Num,Max)
	}
}

function collapseList(List,Num,Max)
{
for(var i=1;i<=Max;i++)
	{
	document.getElementById(List + '-' + i).style.display='none';
	}
}