$(document).ready(function(){
			$.fn.zTree.init($("#treeDemo"), setting, zNodes);
			
			//获取含有.tab的所有table对象
			var tt = $(".tab");
			tt.each(function(i,n){
			   var aId = $("#"+n.id).parent().attr("id");
			   var liId = aId.split("_span")[0];
			   
				//table的高度，用于计算该table紧跟的下个节点的位置。
				var tabHeight = $("#"+liId).find("table").height();
				/**
					var offset = tabHeight - 18 + 6;
					此偏移量为table的下个节点的位置相对于table的偏移像素
				*/
				var offset = tabHeight - 12 ;
				
				var nextNodeId = $("#"+liId).next().attr("id");
				
				//存在同级的节点情况
				if(nextNodeId){
					$("#" + nextNodeId).attr("style","padding-top: " + offset + "px");
					return;
				}else{
					var treeObj = $.fn.zTree.getZTreeObj("treeDemo");
					var node = treeObj.getNodeByTId("treeDemo_8");
					var fatherNode = treeObj.getNodeByTId(node.getParentNode().tId);
					var nextFatherNodeId = fatherNode.getNextNode().tId;
					$("#" + nextFatherNodeId).attr("style","padding-top: " + offset + "px");
				}
			});
		});