ajax post 요청

 document.getElementById("progressOwnArea").style.visibility="visible";


if (window.XMLHttpRequest)
{// code for IE7+, Firefox, Chrome, Opera, Safari
 xmlhttp=new XMLHttpRequest();
}
else
{// code for IE6, IE5
 xmlhttp=new ActiveXObject("Microsoft.XMLHTTP");
}


xmlhttp.onreadystatechange=function()
{


  if (xmlhttp.readyState==4 && xmlhttp.status!=200)//오류
 {
   alert("오류가 발생하였습니다.");
   document.getElementById("progressOwnArea").style.visibility="hidden";
   return;
  }


 if (xmlhttp.readyState==4 && xmlhttp.status==200)//수정 성공
 {
   //alert("수정하였습니다.");
   document.getElementById("progressOwnArea").style.visibility="hidden";
    window.parent.location.reload();
    window.location.reload();
   return;
           }
}



//쿼리스트링 생성
var queryString="";
var frm=document.forms[0];



var numberElements=frm.elements.length-1;
for(var i=0;i<numberElements;i++){
if(i<numberElements-1){
queryString+=frm.elements[i].name+"="+encodeURIComponent(frm.elements[i].value)+"&";
}else{
queryString+=frm.elements[i].name+"="+encodeURIComponent(frm.elements[i].value);
}
}



xmlhttp.open("POST","/adm/memberMgr/member_modi_save.jsp",true);
xmlhttp.setRequestHeader("Content-Type","application/x-www-form-urlencoded;charset=utf-8");
xmlhttp.send(queryString);