Stop an Animation drifting off the screen

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I have a basic animation which toggles an image down the screen. Is there an easy way to move it back up to the top of the screen once it has moved down a certain distance?

<!DOCTYPE HTML>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>Untitled Document</title>
</head>

<body>
<script src="http://code.jquery.com/jquery-1.9.1.min.js"></script>
<script>
jQuery(document).ready(function(){
  $('#clickme').click(function() {
  $('#rds').animate({
    opacity: 0.25,
    left: '+=50',
    height: 'toggle'
  }, 5000, function() {
    // Animation complete.
  });
});
});
</script>
<div id="clickme">
  Click here
</div>
<img id="rds" src="rds.jpg" alt="" width="100" height="123"
  style="position: relative; left: 10px;" />
</body>

</html>

Posted 20-Apr-13 8:10am

BrianHamilton

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Brian A Stephens · Accepted Answer · 2013-04-23T04:56:00

Your code does not move the image "down" the screen; it moves it to the right. So I am going with the assumption that you want to reset it to the left after it has traveled to the right a certain distance.

Just add the following code to the click event handler:

JavaScript

if (parseInt($('#rds').css('left')) > 400) {
    $('#rds').css('left', '10px');
}