function getCheck_id_by_ajax() {

		var user_id = document.getElementById("txtMemberId").value;
		user_id	=	user_id.replace(/(^\s*)|(\s*$)/g, "");	//	공백제거

		if(	user_id == ""){	alert("아이디를 입력하세요"); return; }

		var url = "/member/ajax_check_id2.asp?member_id=" + user_id;
		
	
		request.open("GET", url, true);
		request.onreadystatechange = update_ajax_result_id;
		request.send(null);
	}

	function update_ajax_result_id(){
		if (request.readyState == 4) {
			if (request.status == 200) {
				
				//	=======================
				//	아약스 응답받기
				//	=======================
				var ajax_response	=	request.responseText ;
				var result			=	ajax_response.split("|||");
//				document.insForm.hidCheckId.value	=	result[1].trim();
				document.insForm.hidCheckId.value	=	'Y';

				//	==========================
				//	ID 중복확인. 웹표준 사용.
				//	==========================
				var	element	=	document.getElementById("ajax_result_id");
				var	new_txt	=	document.createTextNode(result[0]);
				element.replaceChild(new_txt, element.childNodes[0]);
				element.style.display	=	"";

			} else {
				var message = request.getResponseHeader("Status");
				if ((message.length == null) || (message.length <= 0)) {
					alert("Error! Request status is " + request.status);
				} else {
					alert(message);
				}
			}
		}
	}

	function initId(){
		document.getElementById("txtMemberId").value	=	"";
		document.getElementById("ajax_result_id").style.display	=	"none";	
		document.insForm.hidCheckId.value	=	"Y";
	}
	
	//Trim()함수
	String.prototype.trim = function () {
	     return this.replace(/^\s*/, "").replace(/\s*$/, "");
	}