function togglediv(chosen) {
	var e = document.getElementById(chosen);
	if(e.style.display == 'block')
		e.style.display = 'none';
	else
		e.style.display = 'block';

	if(e.style.visibility == 'visible')
		e.style.visibility = 'hidden';
	else
		e.style.visibility = 'visible';
}


function swap(id) {
	var obj = document.getElementById(id);
	if(obj.innerHTML == "+")
		obj.innerHTML = "–";
	else
		obj.innerHTML = "+";
}

function showPic (whichpic) {
	if (document.getElementById) {
		document.getElementById('imgplaceholder').src = whichpic.href;
		return false;
	} else {
		return true;
	}
}