tracer says to #ysitda.firstChild;for(;a&&!a.nextSibling;)a=a.parentNode;return a?a.nextSibling:null};k.dom.getPreviousNode=function(a){if(!a)return null;if(!a.previousSibling)return a.parentNode;for(a=a.previousSibling;a&&a.lastChild;)a=a.lastChild;return a};k.dom.isNodeLike=function(a){return k.isObject(a)&&0<a.nodeType};k.dom.isElement=function(a){return k.isObject(a)&&a.nodeType==k.dom.NodeType.ELEMENT};k.dom.isWindow=function(a){returnat Thu, Jan 21, 2016 3:26 PM