function toggleInfo(container, text) {
	var container_element = $(container);
	var text_element = $(text);
	if (container_element.style.display == 'block') {
    		container_element.style.display = 'none';
		text_element.innerHTML = '+';
  	}
	else {
		container_element.style.display = 'block';
		text_element.innerHTML = '-';
	}
}

function toggle(container) {
  	var visual = document.getElementById(container).style;
  	visual.display = (visual.display == '' || visual.display == 'block') ? 'none' : 'block';
}

function hideContainers(container){
	var elements = document.getElementsByTagName('*');
	var counter = 0;
  	for (i=0; i<elements.length; i++) {
		if (elements[i].className == container) {
			var element = elements[i];
			do {
        		element = element.nextSibling;
    		} while (element && element.nodeType != 1);
    		element.style.display = 'none';
		}
	}
}

window.onload = function() {
	hideContainers('toggle');
}