function toggle(id) {
	var obj = document.getElementById(id);
	
	if (obj.style.display == "none") obj.style.display = "";
	else obj.style.display = "none";
}

function toggleImg(id, img_id) {
	var obj = document.getElementById(id);
	var img = document.getElementById(img_id);
	
	if (obj.style.display == "none") {
		obj.style.display = "";
		img.src = 'images/main/minus.gif';
	}
	else {
		obj.style.display = "none";
		img.src = 'images/main/plus.gif';
	}
}

function waitFor(div_id) {
	div = document.getElementById(div_id);
	div.innerHTML = '<img src="images/main/hourglass.gif" />';
}