return this.map(function(){
var cur = this, closer = 0;
while ( cur && cur.ownerDocument && cur !== context ) {
if ( pos ? pos.index(cur) > -1 : jQuery(cur).is(selector) ) {
return this.map(function(){
var cur = this, closer = 0;
while ( cur && cur.ownerDocument && cur !== context ) {
if ( pos ? pos.index(cur) > -1 : jQuery(cur).is(selector) ) {