Generalize support for events in Dom element maker

src/UnitJS/Dom.js

@@ -22,13 +22,15 @@ function make(tag, properties, children) {
 			case "maxlength":
 				e.setAttribute("maxlength", value);
 				break;
-			case "onClick":
-				e.addEventListener("click", value);
-				break;;
 			default:
+				var matched = key.match(/on([A-Z]\w+)/);
+				if(matched) {
+					e.addEventListener(matched[1].toLowerCase(), value);
+				} else {
 					e[key] = value;
 				}
 		}
+	}
 	for(var i = 0; i < children.length; i++) {
 		e.appendChild(children[i]);
 	}