tinymce.full.js
function (selector) {
        var i, l, ret = [];

        for (i = 0, l = this.length; i < l; i++) {
          DomQuery.find(selector, this[i], ret);
        }

        return DomQuery(ret);
      }
function (selector) {
        var i, l, ret = [];

        for (i = 0, l = this.length; i < l; i++) {
          DomQuery.find(selector, this[i], ret);
        }

        return DomQuery(ret);
      }
function ( selector ) { var i , l , ret = [ ] ; for ( i = 0 , l = this . length ; i < l ; i ++ ) { DomQuery . find ( selector , this [ i ] , ret ) ; } return DomQuery ( ret ) ; }
Finds elements by the specified selector for each element in set.

@method find
@param {String} selector Selector to find elements by.
@return {tinymce.dom.DomQuery} Set with matches elements.
Finds elements by the specified selector for each element in set .