简单的动态div（调整大小，移动，隐藏，显示）

ByRei - dynDiv Description This Javascript make it possible to make a movable and re sizable div very simple. It has also support to limit the movements and also support drop Areas. You only need to add the special class and include the javascript and its worked ;). This Javascript worked on all standard Browser (Crossbrowser) such Firefox, Safari and Internet Explorer 5.5 and above. Features: * One JavaScript to rule them all ;) * Support moving, resize, minimize and maximize the Div * CPU friendly Event Handling (need only CPU power when a DIV is moving or resizeing) * Drop Area Support with different Drop Modes (e.g: Puzzle) * Restricted Areas, the movements and re sizing can be restricted to the browser window or to a special area * Crossbrowser compatible (Firefox, Safari, Internet Explorer, Chrome) * Hide re