3636     tagName: function(nodes, root, tagName, combinator) {  argument
3640         if (combinator) {
3641           if (combinator == "descendant") {
3645           } else nodes = this[combinator](nodes);
3654     id: function(nodes, root, id, combinator) {  argument
3670         if (combinator) {
3671           if (combinator == 'child') {
3674           } else if (combinator == 'descendant') {
3677           } else if (combinator == 'adjacent') {
3681           } else nodes = h[combinator](nodes);
3690     className: function(nodes, root, className, combinator) {  argument
3691       if (nodes && combinator) nodes = this[combinator](nodes);
3707     attrPresence: function(nodes, root, attr, combinator) {  argument
3709       if (nodes && combinator) nodes = this[combinator](nodes);
3716     attr: function(nodes, root, attr, value, operator, combinator) {  argument
3718       if (nodes && combinator) nodes = this[combinator](nodes);
3728     pseudo: function(nodes, name, value, root, combinator) {  argument
3729       if (nodes && combinator) nodes = this[combinator](nodes);