rem: this.transport.setRequestHeader(requestHeader[i], requestHeader[i+1]); 
add: this.transport.setRequestHeader(requestHeaders[i], requestHeaders[i+1]); 
context:   setRequestHeaders: function() {    var requestHeaders = ['X-Requested-With', 'XMLHttpRequest',      'X-Prototype-Version', Prototype.Version];        if (this.options.method == 'post')      requestHeaders.push('Connection', 'close',        'Content-type', 'application/x-www-form-urlencoded');    if (this.options.requestHeaders)      requestHeaders.push.apply(requestHeaders, this.options.requestHeaders);        for (var i = 0; i < requestHeaders.length; i += 2)      this.transport.setRequestHeader(requestHeader[i], requestHeader[i+1]);  },
meta: 5059	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/5059/0dd2981d2b966b97a5ab869f712d7fb7bc1c3598/prototype.js/clean/actionpack/lib/action_view/helpers/javascripts/prototype.js