{mouseup,11}{mousedown,0}{mousedown,0}click on a "button" widget. <body ref="0"><div ref="1"></DIV><form id="mturk_form" ref="3"><div id="wrap" ref="4"><div id="area" ref="5"><div ref="6"></DIV><div ref="10"><button recordingtarget="true" text="mpz" ref="11"><textarea value="t" text="t" ref="17">