1 tinymce.PluginManager.add("hr",function(a){a.addCommand("InsertHorizontalRule",function(){a.execCommand("mceInsertContent",false,"<hr />")});a.addButton("hr",{icon:"hr",tooltip:"Horizontal line",cmd:"InsertHorizontalRule"});a.addMenuItem("hr",{icon:"hr",text:"Horizontal line",cmd:"InsertHorizontalRule",context:"insert"})});