function toggleDiv(divId){
	var div = document.getElementById(divId + "Body");
	var button = document.getElementById(divId + "Button");
	var disp = button.innerHTML;
	
	if(disp=='+'){
		div.style.display="block";
		button.innerHTML="-";
	}else{
		div.style.display="none";
		button.innerHTML="+";
	}
}