// toggles a layer on or off when user clicks on a toggle switch
function Toggle(obj){
	// find the target of the toggle (id will be "toggle" + current id name)
	var tEvtId = document.getElementById("toggle" + obj.id);
	var sEvtId = document.getElementById("teaser" + obj.id);
	
	if (tEvtId.style.display == 'none') {
		tEvtId.style.display = '';
		sEvtId.style.display = 'none';
	}
	else tEvtId.style.display = 'none';
	
		
	//if (tEvtId.style.display == 'none') tEvtId.style.display = '';
	//else tEvtId.style.display = 'none';
}