var FileUploader=new Class({initialize:function(form){var self=this;this.form=new Moo.Form(form,{appendData:""});this.form.addEvent("onComplete",function(response){self.onUpload_cb(response);});},onUpload:function(){this.form.submit();},onUpload_cb:function(response){throw new ExFatal("onUpload_cb(response) must be implemented",this);}});