Was asked to toggle some stuff without a framework

sample.toggle.test.js

	var init = {
		
		accordion: function(){
			
			// Grab next (not null) element
			function next(elem) {
				do {
					elem = elem.nextSibling;
					} while (elem && elem.nodeType != 1);
				return elem;                
			}
			
			// Grab definition term		
			var dt = document.getElementsByTagName('dt');
			
			// Loop through all dt
			for (var i=0; i < dt.length; i++) {
				
				// Assign each a click event
				dt[i].onclick = function() {
					
					// Assign next element dd and child span
					var dd = next(this);
					var span = this.lastChild;
					
					// Check/toggle display style
					dd.style.display = (dd.style.display != 'none' ? 'none' : '' );
					
					// Switch background position on span
					span.style.backgroundPosition = (span.style.backgroundPosition != 'left 0px' ? 'left 0px' : 'left -28px');
					
				};
				
			};
			
		}
		
	};
	
	init.accordion();