定义了一个FCKeditor，怎么获取它的值呢

定义了一个FCKeditor，如何获取它的值呢
尝试了好多方法都不行，下面是我的代码，请指正：
定义一个FCK：
<div><input type='hidden' id='FCKeditor1' name='FCKeditor1' value='' /><input type='hidden' id='FCKeditor1___Config' value='HtmlEncodeOutput=true' /><iframe id='FCKeditor1___Frame' src='fckeditor/editor/fckeditor?InstanceName=FCKeditor1&amp;Toolbar=Default' width='700px' height='400px' frameborder='no' scrolling='no'></iframe></div><tr/>
使用FCK
 var textarea1 = getEditorHTMLContents(('<%=FCKeditor1.ClientID %>').value);

提示：找不到FCKeditor1,换用FCKeditor1___Frame，也一样不行

------解决方案--------------------------------------------------------
var editor = FCKeditorAPI.GetInstance(Name); 
editor.EditorDocument.body.innerText;