<div class=CVariable><blockquote><table border=0 cellspacing=0 cellpadding=0 class="Prototype"><tr><td class="prettyprint">BEGIN_UPDATE: 'beginUpdate'</td></tr></table></blockquote>Specifies the event name for beginUpdate.</div></div><div class=CToolTip id="tt28"><div class=CVariable><blockquote><table border=0 cellspacing=0 cellpadding=0 class="Prototype"><tr><td class="prettyprint">END_UPDATE: 'endUpdate'</td></tr></table></blockquote>Specifies the event name for endUpdate.</div></div><div class=CToolTip 