function enterCheck(evt, el) 
{var evCode = ( window.netscape ) ? evt.which : event.keyCode ;if(evCode == 13) {doSubmit(el);}return false;} 
function doSubmit(e) {
	if(!e){
		e = document.loginForm_main;
	}
	if (e.input_id.value.length < 2) {alert('¾ÆÀ̵𸦠ÀÔ·ÂÇØÁÖ¼¼¿ä');e.input_id.focus();return false;}
	if (e.pw.value.length < 2) {alert('ºñ¹Ð¹øÈ£¸¦ ÀÔ·ÂÇØÁÖ¼¼¿ä');e.pw.focus();return false;}
	e.submit();
	}