how to set text in ckeditor?

Hi,

How do I set text in CKEditor?  CKEditor also needs to integrate with ckfinder. 

I tried doing 

// I need to set ckeditor text with a value in code behind. To get that value from code bhind, I am using a div which would be set in code behind. This is not hidden currently but I would do that eventually. I need to set this value to my ckeditor.
<div id = "editortext" runat = "server"></div> 
         
        <textarea id="editor1" name="editor1"></textarea>
			<script type="text/javascript">
			    window.onload = function () {
			       
			            var edt = CKEDITOR.replace('editor1', { toolbar: 'Basic' });
CKFinder.setupCKEditor(edt, '/ckfinder/');

			            var t = <%=editortext.InnerText %>;
 
			            
			            CKEDITOR.instances.editor1.setData(t);
			           
			    }

</script>

If I put some static text for t, var t = "Some Text"; 

and then set 

 CKEDITOR.instances.editor1.setData(t); it works fine.

If I use, 

var t = <%=editortext.InnerText %>;
 
			            
			            CKEDITOR.instances.editor1.setData(t);

ckeditor is no longer displayed. Only text area is displayed. How to set text in ckeditor ? Please help