Reset button to field with new value in FCKeditor ?

Hi guy,

Is there a way to implement a simple javascript function (button reset and onClick) to reset and refield with new value in FCK (IE5.5 compatible if possible) ?

I'm programming in PHP and I've created a simple FCK editor instance for example :

function createFCK($field, $value)
{
   $oFCKeditor = new FCKeditor($field) ;
   $oFCKeditor->BasePath = "/TEST/fckeditor/";
   $oFCKeditor->Value = $value;
   return $oFCKeditor->CreateHtml();
}