JS error at CKEditor config screen

I get a JS error when configuring CKEditor on my far-from-vanilla site. I included a screen shot. The line it breaks on is:

88for(var x=0;x

');u=0;}if(y==='/'){s.push('

');continue;}s.push('');var B=v.push(A)-1;if(B>0){A.previous=v[B-1];A.previous.next=A;}for(var C=0;C');u=1;}}else if(u){s.push('');u=0;}var F=D.render(o,s);B=A.items.push(F)-1;if(B>0){F.previous=A.items[B-1];F.previous.next=F;}F.toolbar=A;F.onkey=p;F.onfocus=function(){if(!o.toolbox.focusCommandExecuted)o.focus();};}}if(u){s.push('');u=0;}s.push('');}s.push('

');if(o.config.toolbarCanCollapse){var G=e.addFunction(function(){o.execCommand('toolbarCollapse');});o.on('destroy',function(){e.removeFunction(G);});var H=e.getNextId();o.addCommand('toolbarCollapse',{exec:function(I){var J=a.document.getById(H),K=J.getPrevious(),L=I.getThemeSpace('contents'),M=K.getParent(),N=parseInt(L.$.style.height,10),O=M.$.offsetHeight,P=!K.isVisible();if(!P){K.hide();J.addClass('cke_toolbox_collapser_min');J.setAttribute('title',I.lang.toolbarExpand);}else{K.show();J.removeClass('cke_toolbox_collapser_min');J.setAttribute('title',I.lang.toolbarCollapse);}J.getFirst().setText(P?'▲':'◀');var Q=M.$.offsetHeight-O;L.setStyle('height',N-Q+'px');I.fire('resize');},modes:{wysiwyg:1,source:1}});s.push('','▲','');}q.data.html+=s.join('');}});o.addCommand('toolbarFocus',n.toolbarFocus);}});})();k.separator={render:function(m,n){n.push('');return{};}};i.toolbarLocation='top';i.toolbar_Basic=[['Bold','Italic','-','NumberedList','BulletedList','-','Link','Unlink','-','About']];i.toolbar_Full=[['Source','-','Save','NewPage','Preview','-','Templates'],['Cut','Copy','Paste','PasteText','PasteFromWord','-','Print','SpellChecker','Scayt'],['Undo','Redo','-','Find','Replace','-','SelectAll','RemoveFormat'],['Form','Checkbox','Radio','TextField','Textarea','Select','Button','ImageButton','HiddenField'],'/',['Bold','Italic','Underline','Strike','-','Subscript','Superscript'],['NumberedList','BulletedList','-','Outdent','Indent','Blockquote','CreateDiv'],['JustifyLeft','JustifyCenter','JustifyRight','JustifyBlock'],['BidiLtr','BidiRtl'],['Link','Unlink','Anchor'],['Image','Flash','Table','HorizontalRule','Smiley','SpecialChar','PageBreak','Iframe'],'/',['Styles','Format','Font','FontSize'],['TextColor','BGColor'],['Maximize','ShowBlocks','-','About']];