function loginit(){
bnk = / /g; 
form = document.login

if(form.id.value == 0){
alert("¾ÆÀ̵𸦠ÀÔ·ÂÇÏ¿©ÁÖ¼¼¿ä.");
form.id.focus();
return false;
}

if(form.id.value.indexOf(" ") != -1){
alert("°ø¹é¾øÀÌ ÀÔ·ÂÇÏ¿©ÁÖ¼¼¿ä.")
form.id.focus();
return false;
}

if(form.id.value.length < 4 || form.id.value.length > 20){
alert("¾ÆÀ̵ð´Â 4ÀÚÀÌ»ó 10ÀÚÀÌÇÏ¿©¸¸ ÇÕ´Ï´Ù.");
form.id.focus();
return false;
}

var alpha = "abcdefghijklmnopqrstuvwxyz";
var num = "1234567890";
var alphanum = alpha + num;
var t = form.id.value;
var rtn = 0;
				
for(i = 0; i < t.length; i++){

   if(alphanum.indexOf(t.substring(i,i + 1)) < 0){
   alert("¾ÆÀ̵ð´Â '¿µ¼Ò¹®ÀÚ','¼ýÀÚ'¸¸ ÀÌ·ç¾îÁø 4ÀÚÀÌ»ó 10ÀÚÀÌÇÏ¿©¸¸ÇÕ´Ï´Ù.");
   rtn = (-1);
   break;
   }

}

if(rtn == (-1)){
form.id.focus();
return false;
}

if(form.passwd.value == 0){
alert("ºñ¹Ð¹øÈ£¸¦ ÀÔ·ÂÇÏ¿©ÁÖ¼¼¿ä.");
form.passwd.focus();
return false;
}

if(form.passwd.value.indexOf(" ") != -1){
alert("°ø¹é¾øÀÌ ÀÔ·ÂÇÏ¿©ÁÖ¼¼¿ä.")
form.passwd.focus();
return false;
}

if(form.passwd.value.length < 4 || form.passwd.value.length > 10){
alert("ºñ¹Ð¹øÈ£´Â 4ÀÚÀÌ»ó 10ÀÚÀÌÇÏ¿©¸¸ ÇÕ´Ï´Ù.");
form.passwd.focus();
return false;
}

var alpha = "abcdefghijklmnopqrstuvwxyz";
var num = "1234567890";
var alphanum = alpha + num;
var t = form.passwd.value;
var rtn = 0;
				
for(i = 0; i < t.length; i++){

   if(alphanum.indexOf(t.substring(i,i + 1)) < 0){
   alert("ºñ¹Ð¹øÈ£´Â '¿µ¼Ò¹®ÀÚ','¼ýÀÚ'¸¸ ÀÌ·ç¾îÁø 4ÀÚÀÌ»ó 10ÀÚÀÌÇÏ¿©¸¸ÇÕ´Ï´Ù.");
   rtn = (-1);
   break;
   }
}

if(rtn == (-1)){
form.passwd.focus();
return false;
}

}


function sear_id_pw(){
var width = screen.width;
var height = screen.height;
var w = (width - 330) / 2; 
var h = (height - 180) / 2; 

url = "/mypage/sear_id_pw.asp";
window.open(url,"sear_id_pw","toolbar=no,menubar=no,scrollbars=no,resizable=no,width=330,height=180,left="+w+",top="+h);
}