In CKEditor getSelection() returns null value in IE
I am having an small code to select an text in CKEditor. For that i am using following code in javascript.

            var docx = editor.document;
            var elementx = docx.getById(id);
            editor.getSelection().selectElement(elementx);
            editor.getSelection().scrollIntoView(true);
It works fine in Mozilla Firefox.But in IE9 it throws an error as selectElement is not an object. So i checked the code and found that getSelection() having an null value. Please help me how to solve it.
I tried some answers given in various sites even in CKEditor fourms nothing helped me.
In CKEditor getSelection() returns null value in IE
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I am having an small code to select an text in CKEditor. For that i am using following code in javascript.

            var docx = editor.document;
            var elementx = docx.getById(id);
            editor.getSelection().selectElement(elementx);
            editor.getSelection().scrollIntoView(true);
It works fine in Mozilla Firefox.But in IE9 it throws an error as selectElement is not an object. So i checked the code and found that getSelection() having an null value. Please help me how to solve it.
I tried some answers given in various sites even in CKEditor fourms nothing helped me.