{mouseup,15}{mouseup,15}{mousedown,0}{mousedown,0}click on a "button" widget. <body ref="0"><form id="mturk_form" ref="1"><div id="wrap" ref="2"><div id="area" ref="3"><div ref="4"></DIV><div ref="8"><div ref="14"><button recordingtarget="true" text="odhb" ref="15">