$.fbuilder.typeList.push( { id:"ffieldset", name:"Fieldset", control_category:10 } ); $.fbuilder.controls[ 'ffieldset' ]=function(){}; $.extend( $.fbuilder.controls[ 'ffieldset' ].prototype, $.fbuilder.controls[ 'fcontainer' ].prototype, { title:"Untitled", ftype:"ffieldset", fields:[], columns:1, display:function() { return '- available only in commercial version of plugin -'; }, editItemEvents:function() { $.fbuilder.controls[ 'fcontainer' ].prototype.editItemEvents.call(this); } });