rem: return (!s || !s.rangeCount || s.rangeCount == 0); 
add: return (!s || !s.rangeCount || s.rangeCount === 0); 
context: 	isHidden : function() {		var s;		if (tinyMCE.isIE)			return false;		s = this.getSel();		// Weird, wheres that cursor selection?		return (!s || !s.rangeCount || s.rangeCount == 0);	},
meta: 3891	/local1/tlutelli/issta_data/temp/all_js/javascript/2007_temp/2007/3891/e8e3862e104280a24076077196c7b5713720de70/tiny_mce_src.js/buggy/plugins/editors/tinymce/jscripts/tiny_mce/tiny_mce_src.js