javascript - Jquery replace img class src attribute -


i hoping find out why following code not work:

  <script type = "text/javascript" language = "javascript">      $(document).ready(function() {         $("#myimg").attr("src", "image2.jpg");      });   </script>    <div>      <img class = "myimg" src = "image1.jpg" alt = "sample image" />   </div>

while block does:

  <script type = "text/javascript" language = "javascript">      $(document).ready(function() {         $("#myimg").attr("src", "image2.jpg");      });   </script>    <div>      <img id= "myimg" src = "image1.jpg" alt = "sample image" />   </div>

in html in first block need set id of img tag myimg:

<img id="myimg">

if you're going call $('#myimg')

you can change jquery call like:

$('.myimg')

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