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<!doctype html>
<html lang="en">
	<title>jQuery UI Draggable - Constrain movement</title>
	<link type="text/css" href="../../themes/base/ui.all.css" rel="stylesheet" />
	<script type="text/javascript" src="../../jquery-1.3.2.js"></script>
	<script type="text/javascript" src="../../ui/ui.core.js"></script>
	<script type="text/javascript" src="../../ui/ui.draggable.js"></script>
	<link type="text/css" href="../demos.css" rel="stylesheet" />
	<style type="text/css">
	.draggable { width: 90px; height: 90px; padding: 0.5em; float: left; margin: 0 10px 10px 0; }
	#draggable, #draggable2 { margin-bottom:20px; }
	#draggable { cursor: n-resize; }
	#draggable2 { cursor: e-resize; }
	#containment-wrapper { width: 95%; height:150px; border:2px solid #ccc; padding: 10px;}
	<script type="text/javascript">
	$(function() {
		$("#draggable").draggable({ axis: 'y' });
		$("#draggable2").draggable({ axis: 'x' });
		$("#draggable3").draggable({ containment: '#containment-wrapper', scroll: false });
		$("#draggable4").draggable({ containment: '#demo-frame' });
		$("#draggable5").draggable({ containment: 'parent' });

<div class="demo">

<h3 class="docs">Constrain movement along an axis:</h3>
<div id="draggable" class="draggable ui-widget-content">
	<p>I can be dragged only vertically</p>

<div id="draggable2" class="draggable ui-widget-content">
	<p>I can be dragged only horizontally</p>

<h3 class="docs">Or to within another DOM element:</h3>
<div id="containment-wrapper">
<div id="draggable3" class="draggable ui-widget-content">
	<p>I'm contained within the box</p>

<div id="draggable4" class="draggable ui-widget-content">
	<p>I'm contained within the box's parent</p>

<div class="draggable ui-widget-content">
	<p id="draggable5" class="ui-widget-header">I'm contained within my parent</p>

</div><!-- End demo -->

<div class="demo-description">

Constrain the movement of each draggable by defining the boundaries of the draggable area. Set the <code>axis</code> option to limit the draggable's path to the x- or y-axis, or use the <code>containment</code> option to specify a parent DOM element or a jQuery selector, like 'document.'

</div><!-- End demo-description -->
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