function createRequestObject() {
     var ro;
     var browser = navigator.appName;
     if(browser == "Microsoft Internet Explorer"){
          ro = new ActiveXObject("Microsoft.XMLHTTP");
     }else{
          ro = new XMLHttpRequest();
     }
     return ro;
}

var http = createRequestObject();

function sndReq(entered_login, entered_password) {
     http.open('get', '../login/authenticate?name='+entered_login+'&password='+entered_password);
     http.onreadystatechange = handleResponse;
     http.send(null);
}

function sndReq2(entered_login, entered_password) {
     http.open('get', '../../login/authenticate?name='+entered_login+'&password='+entered_password);
     http.onreadystatechange = handleResponse;
     http.send(null);
}


function vota(n, id_resena) {
     http.open('get', '../../resena/suma_voto?n='+n+'&id_resena='+id_resena);
     http.onreadystatechange = handleResponse_vota;
     http.send(null);
}

function handleResponse() {
     if(http.readyState == 4){
          var response = http.responseText;
		  if (response > 0){
		    document.location.reload();	
		  }else{
          	document.getElementById('msg').innerHTML = response;
     	  }
	  }
}

function handleResponse_vota() {
     if(http.readyState == 4){
          var response = http.responseText;
		  if (response > 0){
		    document.location.reload();	
		  }else{
          	document.getElementById('calif_result').innerHTML = response;
     	  }
	  }
}