//======= ¾ÆÀ̵ð üũ===========
function xml_IDCheck() {
	var xmlHttpID = Ajax.getTransport();
	
	var obj = document.getElementById("mem_id");
	var mem_id = obj.value;
	if (mem_id == ""){
		alert('¾ÆÀ̵𸦠ÀÔ·Â Çϼ¼¿ä');
		obj.focus();
		return;
	}else if(mem_id.length<4){
		alert('¾ÆÀ̵ð´Â 4ÀÚ ÀÌ»óÀ̾î¾ß ÇÕ´Ï´Ù.');
		obj.focus();
		return;
    }else if (!EngNumCheck(mem_id)){
		alert("¿µ¹® + ¼ýÀÚ·Î ÀÔ·ÂÇϼ¼¿ä.");
		obj.focus();
		return;
	}else{
		xmlHttpID.Open("GET", "/member/id_check.asp?mem_id="+mem_id, true);
		xmlHttpID.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");
		xmlHttpID.onreadystatechange = xml_IDCallback;
		xmlHttpID.send(null);
	}

	function xml_IDCallback() {
		var obj = document.getElementById("mem_id");
		if (xmlHttpID.readyState == 4) {
			if (xmlHttpID.status == 200) {
				var xmlDoc = xmlHttpID.responseXML;
				try {
					var result = xmlDoc.childNodes[1].getElementsByTagName("result")[0].firstChild.nodeValue;
					var msg = xmlDoc.childNodes[1].getElementsByTagName("msg")[0].firstChild.nodeValue;
				} catch(e) {
					return;
				}
				if (result == "1"){
					alert(msg);
					return;		
				} else if (result == "0"){
					alert(msg);
					obj.value = "";
					obj.focus();
					return;				
				}
			} else if (xmlHttpID.status == 204) {
				alert("Àü´ÞµÈ µ¥ÀÌÅÍ°¡ ¾ø½À´Ï´Ù.");
			} else if (xmlHttpID.status == 404) {
				alert("URLÀ» È®ÀÎÇϼ¼¿ä.");
			} else if (xmlHttpID.status == 500) {
				alert("³»ºÎ ¿¡·¯!.");
			}
		}
	}
}
//=========================================