// -----------------------------------------------------------------------------------
//
//	Funcionalidad Ajax 
//
// -----------------------------------------------------------------------------------

var http_request = false;
function makePOSTRequest(url, parameters) {
  http_request = false;
  if (window.XMLHttpRequest) { // Mozilla, Safari,...
     http_request = new XMLHttpRequest();
     if (http_request.overrideMimeType) {
     	// set type accordingly to anticipated content type
        //http_request.overrideMimeType('text/xml');
        http_request.overrideMimeType('text/html');
     }
  } else if (window.ActiveXObject) { // IE
     try {
        http_request = new ActiveXObject("Msxml2.XMLHTTP");
     } catch (e) {
        try {
           http_request = new ActiveXObject("Microsoft.XMLHTTP");
        } catch (e) {}
     }
  }
  if (!http_request) {
     alert('Cannot create XMLHTTP instance');
     return false;
  }
  
  http_request.onreadystatechange = alertContents;
  http_request.open('POST', url, true);
  http_request.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
  http_request.setRequestHeader("Content-length", parameters.length);
  http_request.setRequestHeader("Connection", "close");
  http_request.send(parameters);
}

function alertContents() {
  if (http_request.readyState == 4) {
     if (http_request.status == 200) {
        //alert(http_request.responseText);
        result = http_request.responseText;
        document.getElementById('rm-response').innerHTML = result;            
     } else {
        alert('There was a problem with the request.');
     }
  }
}

function checkRadio(ctrl)
{
  var value = null;
   
  for(i=0;i<ctrl.length;i++)
  {
    if(ctrl[i].checked) 
    {
      ctrl[i].checked = false;
      return ctrl[i].value;
    }
  }

  return null;
}


function rmGet(obj) {
  var poststr = "group0="  + checkRadio(document.rmform.group0) +
                "&name0=" + document.getElementById("group0").name + 
                "&group1=" + checkRadio(document.rmform.group1) +
                "&name1=" + document.getElementById("group1").name + 
                "&group2=" + checkRadio(document.rmform.group2) +
                "&name2=" + document.getElementById("group2").name + 
                "&group3=" + checkRadio(document.rmform.group3) +
                "&name3=" + document.getElementById("group3").name;               
  makePOSTRequest('post.php', poststr);
}