แก้ปัญหาบันทึก radio button กับ ajax ไม่ได้คับ ผมจะบันทึก การเลือก radiobutton ไม่ได้คับ

   <script language="JavaScript">
	   var HttPRequest = false;
	   function doCallAjax(Mode,ID) {
		  HttPRequest = false;
		  if (window.XMLHttpRequest) { // Mozilla, Safari,...
			 HttPRequest = new XMLHttpRequest();
			 if (HttPRequest.overrideMimeType) {
				HttPRequest.overrideMimeType('text/html');
			 }
		  } else if (window.ActiveXObject) { // IE
			 try {	HttPRequest = new ActiveXObject("Msxml2.XMLHTTP");
			 } catch (e) {
				try {	   HttPRequest = new ActiveXObject("Microsoft.XMLHTTP");
				} catch (e) {}
			 }
		  } 
		  if (!HttPRequest) {
			 alert('Cannot create XMLHTTP instance');
			 return false;
		  }
  var url = 'query.php';
  if (Mode=="UPDATE"){
  
  	var Male=document.getElementById('Male');
var Female=document.getElementById('Female');
if (Male.checked) {
sex = Male.value;
} else if (Female.checked) {
sex = Female.value;
}
  	var A=document.getElementById('A');
	  	var B=document.getElementById('B');
		  	var AB=document.getElementById('AB');
			  	var O=document.getElementById('O');

if (A.checked) {
blood = A.value;
} else if (B.checked) {
blood = B.value;
}else if (AB.checked) {
blood = AB.value;
}else if (O.checked) {
blood = O.value;
}

 var pmeters = "Mode=" + Mode + "&ID=" + encodeURI( document.getElementById("id").value ) +
 	"&name=" + encodeURI( document.getElementById("name").value ) +
	"&nickname=" + encodeURI( document.getElementById("nickname").value ) +
	"&tel=" + encodeURI( document.getElementById("tel").value ) +
	"&email=" + encodeURI( document.getElementById("email").value ) +
	"&sex="+ (sex)  +
	"&address=" + encodeURI( document.getElementById("address").value ) +
	"&blood="+ (blood)  +

	"&province=" + encodeURI( document.getElementById("province").value );
	
	
  }
else if (Mode == "ADD" ){
  	var Male=document.getElementById('Male');
var Female=document.getElementById('Female');
if (Male.checked) {
sex = Male.value;
} else if (Female.checked) {
sex = Female.value;
}
  	var A=document.getElementById('A');
	  	var B=document.getElementById('B');
		  	var AB=document.getElementById('AB');
			  	var O=document.getElementById('O');

if (A.checked) {
blood = A.value;
} else if (B.checked) {
blood = B.value;
}else if (AB.checked) {
blood = AB.value;
}else if (O.checked) {
blood = O.value;
}

	var pmeters = "name=" + encodeURI( document.getElementById("name").value) +
		"&nickname=" + encodeURI( document.getElementById("nickname").value ) +
	"&tel=" + encodeURI( document.getElementById("tel").value ) +

	"&sex="+ (sex)  +
	
	"&email=" + encodeURI( document.getElementById("email").value ) +
		"&address=" + encodeURI( document.getElementById("address").value ) +
	"&province=" + encodeURI( document.getElementById("province").value ) +
		"&blood=" + encodeURI( document.getElementById("blood") ) +
			"&blood="+ (blood)  +
	"&Mode=" + Mode;
 }
 else{
	   var pmeters = "Mode=" + Mode + "&ID=" + ID;
 }
if(Mode == "LIST")
  {
	var pmeters = "";
  }
	HttPRequest.open('POST',url,true);
	HttPRequest.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
	HttPRequest.setRequestHeader("Content-length", pmeters.length);
	HttPRequest.setRequestHeader("Connection", "close");
	HttPRequest.send(pmeters);
HttPRequest.onreadystatechange = function()
	{
	 if(HttPRequest.readyState == 3)  // Loading Request
	  {
		   document.getElementById("mySpan").innerHTML = "Now is Loading...";
	  }
	 if(HttPRequest.readyState == 4) // Return Request
	  {
		document.getElementById("myForm").style.display = 'none';
	 	document.getElementById("name").value = '';
		document.getElementById("nickname").value = '';
		document.getElementById("address").value = '';
		document.getElementById("tel").value = '';
		document.getElementById("email").value = '';
		 document.getElementById("mySpan").innerHTML = HttPRequest.responseText;
	 }
}
  }
  function ShowEdit(id,name,tel,email,nickname,address,sex,province,blood)
 {
	document.getElementById("myForm").style.display = '';
	document.getElementById("id").value=id;
	document.getElementById("name").value=name;
	document.getElementById("tel").value=tel;
	document.getElementById("email").value=email;
		document.getElementById("nickname").value=nickname;
			document.getElementById("address").value=address;
				document.getElementById("sex").value=sex;
					document.getElementById("province").value=province;
					document.getElementById("blood").value=blood;
					alert(blood);
				
 }

</script>

<input name="sex" type="radio" id="Male" value="ชาย" />
        ชาย
        <input name="sex" type="radio" id="Female" value="หญิง" />
        หญิง