rem: }.extend(arguments[1] || {}) 
add: }, arguments[1] || {}) 
context: Effect.BlindDown = function(element) {  $(element).style.height   = '0px';  Element.makeClipping(element);  Element.show(element);  new Effect.Scale(element, 100,     { scaleContent: false,       scaleX: false,       scaleMode: 'contents',      scaleFrom: 0,      afterFinish: function(effect) {        Element.undoClipping(effect.element);      }    }.extend(arguments[1] || {})  );}
meta: 5593	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/5593/16669774903dd7bfaaf1bf8f0c72e49ebaeffeeb/effects.js/buggy/railties/html/javascripts/effects.js