config.js not working ....

Thanks sebstefanov, 

I tried many times, now I have the results.
config.js

CKEDITOR.editorConfig = function(config){
	config.uiColor = '#AADC6E';
    config.language = 'zh';
    config.skin = 'kama';
    config.width = 700;
    config.height = 300;

    config.toolbar = 'MyBasic';

    config.toolbar_MyFull =[
    { name: 'document', items : ['Source','-','Save','NewPage','DocProps','Preview','Print','-','Templates'] },
    { name: 'clipboard', items : ['Cut','Copy','Paste','PasteText','PasteFromWord','-','Undo','Redo'] },
    { name: 'editing', items : ['Find','Replace','-','SelectAll','-','SpellChecker', 'Scayt'] },
    { name: 'forms', items : ['Form', 'Checkbox', 'Radio', 'TextField', 'Textarea', 'Select', 'Button', 'ImageButton', 'HiddenField'] },
    { name: 'basicstyles', items : ['Bold','Italic','Underline','Strike','Subscript','Superscript','-','RemoveFormat'] },
    { name: 'links', items : ['Link','Unlink','Anchor'] },
    { name: 'colors', items : ['TextColor','BGColor'] },
    '/',
    { name: 'insert', items : ['Image','Flash','Table','HorizontalRule','Smiley','SpecialChar','PageBreak','Iframe'] },
    { name: 'paragraph', items : ['NumberedList','BulletedList','-','Outdent','Indent','-','Blockquote','CreateDiv','-','JustifyLeft','JustifyCenter','JustifyRight','JustifyBlock','-','BidiLtr','BidiRtl'] },
    { name: 'styles', items : ['Styles','Format','Font','FontSize'] },
    ];

		 config.toolbar_MyBasic=[
     { name: 'document', items : ['Source','NewPage','Preview'] },
     { name: 'basicstyles', items : ['Bold','Italic','Strike','-','RemoveFormat'] },
     { name: 'clipboard', items : ['Cut','Copy','Paste','PasteText','PasteFromWord','-','Undo','Redo'] },
     { name: 'editing', items : ['Find','Replace','-','SelectAll','-','Scayt'] },
     '/',
     { name: 'styles', items : ['Styles','Format'] },
     { name: 'paragraph', items : ['NumberedList','BulletedList','-','Outdent','Indent','-','Blockquote'] },
     { name: 'insert', items :['Image','Flash','Table','HorizontalRule','Smiley','SpecialChar','PageBreak','Iframe'] },
     { name: 'links', items : ['Link','Unlink','Anchor'] },
     { name: 'tools', items : ['Maximize'] }
     ];
};

HTML

<textarea name="content" id="content" cols="50" rows="20"></textarea>
<script language="JavaScript"><!--
CKEDITOR.replace('content', {
                 toolbar: 'MyFull'
                });
//--></script>

I tested in IE8, I join the editor to my scripts and templates.
I found that IE8 will not be immediately reflected.
Even if I delete temporary files and reload page.
I need close the tab and open new tab, then it will be reflected.
But if I use static html page, it will be reflected when reload.
In google chrome, no this problem.

Now, You can set many toolbar up to config.sys, and set one toolbar as default.
If you have congif default toolbar. 
HTML

<textarea name="content" id="content" cols="50" rows="20"></textarea>
<script language="JavaScript"><!--
CKEDITOR.replace('content');
//--></script>

If you want use other toolbar which config in config.sys.

HTML

<textarea name="content" id="content" cols="50" rows="20"></textarea>
<script language="JavaScript"><!--
CKEDITOR.replace('content', {
                 toolbar: 'ToolbarA'
                });
//--></script>

That's all.