//Toggles a <div> tag by ID from the 'unhided' class to the 'hided' class and vice versa.
function toggleDiv(divID) {
	
	if( !document.getElementById) return; //no such function. Oops.
	var div = document.getElementById(divID);

	div.className = (div.className == 'unhided')?'hided':'unhided';
}