how to run embedded script when editing

You are using <a href="http://www.fckeditor.net/">FCKeditor</a></em><strong id="input1" onclick="alert('aaa');">HI</strong>

You are using <a href="http://www.fckeditor.net/">FCKeditor</a></em><strong id="input1" onclick="myalert()">HI</strong>
<script>
function myalert()
{
    alert{'aaa'}
} 
</script>