nserting new cells into the graph. </div></div><div class=CToolTip id="tt11"><div class=CFunction><blockquote><table border=0 cellspacing=0 cellpadding=0 class="Prototype"><tr><td><table border=0 cellspacing=0 cellpadding=0><tr><td class="PBeforeParameters  prettyprint "nowrap>mxDefaultToolbar.prototype.addItem = function(</td><td class="PParameter  prettyprint " nowrap>title,</td></tr><tr><td></td><td class="PParameter  prettyprint " nowrap>icon,</td></tr><tr><td></td><td class="PParameter  prettyprint " n