/* 
* @Author: 陶秋峰
* @Date:   2016-01-08 07:53:27
* @Last Modified by:   陶秋峰
* @Last Modified time: 2016-01-08 08:50:17
* @CopyRight 蛮蛮工作室
*/
import global from './global';
let win: Window = global;
let doc = win.document;
export function by_id(id: string | HTMLElement): HTMLElement{
	return ((typeof id == "string") ? doc.getElementById(<string>id) : <HTMLElement>id) || null; // DOMNode
}