처음 로드시 FCKEditor 생성
window.onload = fucntion()
{
oFCKeditor = new FCKeditor( 'content','100%',300) ;
oFCKeditor.ReplaceTextarea() ;
}
validate 체크 및 focus
var fck=FCKeditorAPI.GetInstance(oFCKeditor.InstanceName) ;
if( fck.GetXHTML(true) == "" ){
window.alert("내용을 입력해 주세요");
fck.Focus();
return;
}