how to sort data from multiple tables

<div ref="app_track_changes" id="Div9" class="emptySearch nb_app nb_overlay nb_Cengage_My Notes_app nb_currentApp" style="right: 0px;display: block;margin-right: 16px;margin-top: 145px;width: 500px;height: 528px;"><span class="removedata" style="color:#ccc;float:right" onclick="removeID('1',false,'t')">×</span><table class="bookmarks-table" data-userid="un12345"><tbody><tr><td class="identity" style="padding: 0px 10px 0px 10px" authorname="Guest " authortime="now" trackid="1">Added by Guest now</td></tr><tr><td style="padding: 0px 10px 0px 10px" class="bookmarks-text">ghfhghhdhdh</td></tr></tbody></table><table class="bookmarks-table" data-userid="un12345"><tbody><tr><td class="identity ...