function Inint_AJAX() {
   try { return new ActiveXObject("Msxml2.XMLHTTP");  } catch(e) {} //IE
   try { return new ActiveXObject("Microsoft.XMLHTTP"); } catch(e) {} //IE
   try { return new XMLHttpRequest();          } catch(e) {} //Native Javascript
   alert("XMLHttpRequest not supported");
   return null;
};
/* GET ตรวจสอบเพศ */
function select_sex(page,show,txt1) {
  var req = Inint_AJAX(); 
  document.getElementById(""+show+"").innerHTML='';
  var sText=document.getElementById(txt1).value;
        var query;
		query="?";
		query+="sex="+sText;
		var rstr;
		rstr=Math.random();
		query+="&var="+rstr;
  req.open('GET', page+query, true); 
  req.onreadystatechange = function() { 
    if (req.readyState==4) {
      if (req.status==200) { 
        var data=req.responseText; 
        document.getElementById(""+show+"").innerHTML=data; 
      }
    }
  };
  req.setRequestHeader("Content-Type", "application/x-www-form-urlencoded;charset=utf-8"); 
  req.send(null);
};
/* GET คำนวณอายุ */
function select_birth(page,show,bd,bm,by) {
  var req = Inint_AJAX(); 
  document.getElementById(""+show+"").innerHTML='';
  var Bd=document.getElementById(bd).value;
  var Bm=document.getElementById(bm).value;
  var By=document.getElementById(by).value;
        var query;
		query="?";
		query+="bd="+Bd;
		query+="&bm="+Bm;
		query+="&by="+By;
		var rstr;
		rstr=Math.random();
		query+="&var="+rstr;
  req.open('GET', page+query, true); 
  req.onreadystatechange = function() { 
    if (req.readyState==4) {
      if (req.status==200) { 
        var data=req.responseText; 
        document.getElementById(""+show+"").innerHTML=data; 
      }
    }
  };
  req.setRequestHeader("Content-Type", "application/x-www-form-urlencoded;charset=utf-8"); 
  req.send(null);
};