Your main issue:

at tiny_mce_gzip.js (line 467)

tinyMCE.addToLang is not a function
eval("var tinymce={majorVersion:'3',minorVersion:'0.5',releaseDate:'2008-03-12',_init:function(){var t=thi...")tiny_mce_gzip.js (line 179)
loadScripts(1, "simple,advanced", "style,layer,table,save,advhr,advimage,advlink,emotions,iespell,insertdatetime,preview,media,searchre...", "en", undefined, undefined)tiny_mce_gzip.js (line 76)
init(Object themes=simple,advanced, see more undefined, undefined)tiny_mce_gzip.js (line 28)
[Break on this error] undefined