Описание тега jquery-ui-draggable
The jQuery UI Draggable plugin makes selected elements draggable with mouse movement.
The jquery-ui Draggable plugin makes the selected elements draggable with mouse movement.
Enable draggable functionality on any DOM element. Move the draggable object by clicking on it with the mouse and dragging it anywhere within the viewport.
Best part is that it is very easy to use. See this example:
<script>
$(function() {
$( "#draggable" ).draggable();
});
</script>
For more information visit- jQuery UI - Draggable Demos and the API Documentation