active_div	=	"";



function	showDiv(div_id)	{
	our_div	=	document.getElementById(div_id);
	our_div.style.display	=	"block";
	return	true;
}

function	hideDiv(div_id)	{
	our_div	=	document.getElementById(div_id);
	our_div.style.display	=	"none";
	return	true;
}

function	switchDiv(div_id)	{
	if	( active_div != "" )	{
		hideDiv(active_div);
	}
	showDiv(div_id);
	active_div	=	div_id;
}















function	init()	{
	divs_to_hide	=	["NHI", "CHI", "PFA", "ELB", "CSWS", "NE"];
	
	for	( i=0; i<divs_to_hide.length; i++ )	{
		hideDiv(divs_to_hide[i]);
	}
	
	return	true;
}