rem: this.options.parameters = $H(typeof this.options.parameters == 'string' ? this.options.parameters.toQueryParams() : this.options.parameters); 
add: if (typeof this.options.parameters == 'string') this.options.parameters = this.options.parameters.toQueryParams(); 
context:   setOptions: function(options) {    this.options = {      method:       'post',      asynchronous: true,      contentType:  'application/x-www-form-urlencoded',      encoding:     'UTF-8',      parameters:   ''    }    Object.extend(this.options, options || {});    this.options.method = this.options.method.toLowerCase();    this.options.parameters = $H(typeof this.options.parameters == 'string' ?      this.options.parameters.toQueryParams() : this.options.parameters);  }
meta: 1000	/local1/tlutelli/issta_data/temp/all_js/javascript/2007_temp/2007/1000/53dfa93e53bccf5af1729cbdce88cb70e1ffcca5/prototype.js/buggy/public/javascripts/prototype.js