code: function( func ) {
  				var contents = me._.contents,
  					stop = false;
  
  				for ( var i in contents ) {
  					for ( var j in contents[ i ] ) {
  						stop = func.call( this, contents[ i ][ j ] );
  						if ( stop )
  							return;
  					}
  				}
  			}
docs: Iterates over all items inside all content in the dialog, calling a function for each of them.