// adapted from http://www.happycog.com/

function toggleVis(targetId) {
 
	if (document.getElementById) {
		target = document.getElementById(targetId);
		if(target.style.display == "none") {
			target.style.display = "block";
			document.images["i" + targetId].src = "/img/arrow_collapse.gif";
		} else {
			target.style.display = "none";
			document.images["i" + targetId].src = "/img/arrow_expand.gif";
		}
	}
}

function toggleDiv(targetId) {
 
	if (document.getElementById) {
		target = document.getElementById(targetId);
		if(target.style.display == "none") {
			target.style.display = "block";
		} else {
			target.style.display = "none";
		}
	}
}