function toggle(id) {
	//if window.id is not defined or false then show id, otherwise hide it
	if (window.id) {
		document.getElementById(id).style.display="none";
		if (document.getElementById(id+"_link")) document.getElementById(id+"_link").innerHTML="show";
		window.id=false;
	} else {
		document.getElementById(id).style.display="block";
		if (document.getElementById(id+"_link")) document.getElementById(id+"_link").innerHTML="hide";
		window.id=true;		
	}
	
}

function hide(id) {
	document.getElementById(id).style.display="none";
}

function show(id) {
	document.getElementById(id).style.display="block";
}