function expand(div, cur, mx, inc) {
	var obj = document.getElementById(div);
	obj.style.height = Math.min(cur, mx) + "px";
	cur += inc;
	if(cur < mx)
		setTimeout('expand(\'' + div + '\', ' + (cur + inc) + ', ' + mx + ', ' + inc + ')', 50);
}

function collapse(div, cur, inc) {
	var obj = document.getElementById(div);
	obj.style.height = Math.max(cur, 0) + "px";
	cur -= inc;
	if(cur > 0)
		setTimeout('collapse(\'' + div + '\', ' + (cur - inc) + ', ' + inc + ')', 50);
}