function toggle(c,o) {
	var a = document.getElementById(c);
	var b = document.getElementById(o);
	if(a.style.display == "none") a.style.display = "block";
	else a.style.display = "none";
	if(b.style.display == "none") b.style.display = "block";
	else b.style.display = "none";
}

function expandAll() {
	var i = 1;
	var c = 1000;
	var xim;
	var xil;
	var xit;
	var xic;
	for(i;i<c;i++) {
		xim = "x"+i+"m";
		if(!document.getElementById(xim)) continue;
		xil = "x" + i + "l";
		xit = "x" + i + "t";
		xic = "x" + i + "c";
		if(document.getElementById(xil).style.display == "block") continue;
		toggle(xil,xim);
		toggle(xit,xic);
	}
}

function collapseAll() {
	var i = 1;
	var c = 1000;
	var xim;
	var xil;
	var xit;
	var xic;
	for(i;i<c;i++) {
		xim = "x"+i+"m";
		if(!document.getElementById(xim)) continue;
		xil = "x" + i + "l";
		xit = "x" + i + "t";
		xic = "x" + i + "c";
		if(document.getElementById(xil).style.display == "none") continue;
		toggle(xim,xil);
		toggle(xic,xit);
	}
}