<script type="text/javascript" src="path/to/tiny_mce.js"></script>
<script type="text/javascript">
  tinyMCE.init({
   // General options
   mode : "textareas",
   theme : "advanced",
   plugins : "safari,spellchecker,pagebreak,style,
     layer,table,save,advhr,advimage,advlink,
     emotions,iespell,inlinepopups,insertdatetime,
     preview,media,searchreplace,print,contextmenu,
     paste,directionality,fullscreen,noneditable,
     visualchars,nonbreaking,xhtmlxtras,
     template,imagemanager,filemanager",

   // Theme options
   theme_advanced_buttons1 :
     "save,newdocument,|,bold,italic,underline,strikethrough,|,
     justifyleft,justifycenter,justifyright,justifyfull,|,styleselect,
     formatselect,fontselect,fontsizeselect",

   theme_advanced_buttons2 :
     "cut,copy,paste,pastetext,pasteword,|,search,replace,|,
     bullist,numlist,|,outdent,indent,blockquote,|,undo,redo,|,
     link,unlink,anchor,image,cleanup,help,code,|,insertdate,
     inserttime,preview,|,forecolor,backcolor",

   theme_advanced_buttons3 :
     "tablecontrols,|,hr,removeformat,visualaid,|,sub,sup,|,
       charmap,emotions,iespell,media,advhr,|,print,|,
       ltr,rtl,|,fullscreen",

   theme_advanced_buttons4 :
     "insertlayer,moveforward,movebackward,absolute,|,
     styleprops,spellchecker,|,cite,abbr,acronym,del,ins,attribs,|,
     visualchars,nonbreaking,template,blockquote,pagebreak,|,
     insertfile,insertimage",

   theme_advanced_toolbar_location : "top",
   theme_advanced_toolbar_align : "left",
   theme_advanced_statusbar_location : "bottom",
   theme_advanced_resizing : true,

   // Example content CSS (should be your site CSS)
   content_css : "css/example.css",

   // Drop lists for link/image/media/template dialogs
  template_external_list_url : "js/template_list.js",
    external_link_list_url : "js/link_list.js",
    external_image_list_url : "js/image_list.js",
    media_external_list_url : "js/media_list.js"
});
</script>