HomecitySupport,

 

1. First:

 

Please use:

 

var editor1 = document.getElementById('<% = Editor1.ClientID%>');

 

instead of

 

var editor1 = document.getElementById('CE_Editor1_ID');

 

2. Does your existing toolbar contains Spell button?

 

If not, please add the following code at the top of your page:

 

<script language=javascript src='/CuteSoft_Client/CuteEditor/spell.js'></script>

 

For performance issue, if your existing toolbar doesn't contain the spell button, the above script will not be rendered by editor.

 

Does it help?