+ // We have to get length this way when IE & Opera overwrite the length
+ // expando of getElementsByTagName
+ if ( i && i.nodeType ) {
+ for ( i = 0; second[i]; ++i ) {}
+ }
+
+ pos = i + first.length;
+
+ // Correct length for non Arrays
+ first.length = pos;
+
+ while ( i ) {
+ first[ --pos ] = second[ --i ];