+ for ( var i=0,j=this.length; i<j; i++ ) {
+ var cur = this[i];
+
+ while ( cur ) {
+ if ( pos ? pos.index(cur) > -1 : jQuery.find.matches(selectors, [cur]).length ) {
+ ret.push( cur );
+ break;
+ } else {
+ cur = cur.parentNode;
+ if ( !cur.ownerDocument || cur === context ) {
+ break;
+ }
+ }
+ }
+ }