//À̸§, ÁֹιøÈ£ °Ë»ç
function silname(){
	var f = document.silform.username.value;
	if(!f){
		alert("À̸§À» ÀÔ·ÂÇØ ÁÖ¼¼¿ä");
		document.silform.username.focus();
		return;
	}
	var chk =0;  
	var yy = document.silform.jumin1.value.substring(0,2);  
	var mm = document.silform.jumin1.value.substring(2,4);  
	var dd = document.silform.jumin1.value.substring(4,6);  
	var sex = document.silform.jumin2.value.substring(0,1);  
	if (document.silform.jumin2.value.split(" ").join("") == "") {  
		alert ('Áֹεî·Ï¹øÈ£¸¦ ÀÔ·ÂÇϽʽÿÀ.');  
		document.silform.jumin1.focus();  
		return;  
	}  
	if (document.silform.jumin1.value.length!=6)  
	{  
		alert ('Áֹεî·Ï¹øÈ£ ¾ÕÀÚ¸®¸¦ ÀÔ·ÂÇϽʽÿÀ');  
		document.silform.jumin1.focus();  
		return;  
	}  
	if (document.silform.jumin2.value.length != 7 )  
	{  
		alert ('Áֹεî·Ï¹øÈ£ µÞÀÚ¸®¸¦ ÀÔ·ÂÇϽʽÿÀ.');  
		document.silform.jumin2.focus();  
		return;  
	}  
	if (isNaN(document.silform.jumin1.value) || isNaN(document.silform.jumin2.value))  
	{  
		document.silform.jumin1.value = ""  
		document.silform.jumin2.value = ""  
		alert('Áֹεî·Ï¹øÈ£´Â ¼ýÀÚ¸¸ °¡´ÉÇÕ´Ï´Ù.');  
		return;  
	}  
	if ((document.silform.jumin1.value.length!=6)||(mm <1||mm>12||dd<1)){  
		document.silform.jumin1.value = ""  
		alert ('Áֹεî·Ï¹øÈ£ ¾ÕÀÚ¸®°¡ À߸øµÇ¾ú½À´Ï´Ù.');  
		document.silform.jumin1.focus();  
		return;  
	}  
	if ((sex != 1 && sex !=2 && sex !=3&& sex !=4)){  
		document.silform.jumin2.value = ""  
		alert ('Áֹεî·Ï¹øÈ£ µÞÀÚ¸®°¡ À߸øµÇ¾ú½À´Ï´Ù.');  
		document.silform.jumin.focus();  
		return;  
	}  
	for (var i = 0; i <=5 ; i++){  
		chk = chk + ((i%8+2) * parseInt(document.silform.jumin1.value.substring(i,i+1)))  
	}  
	for (var i = 6; i <=11 ; i++){  
		chk = chk + ((i%8+2) * parseInt(document.silform.jumin2.value.substring(i-6,i-5)))  
	}  
	chk = 11 - (chk %11)  
	chk = chk % 10  
	if (chk != document.silform.jumin2.value.substring(6,7))  
	{  
		document.silform.jumin1.value = ""  
		document.silform.jumin2.value = ""  
		alert ('¸ÂÁö ¾Ê´Â Áֹεî·Ï¹øÈ£ÀÔ´Ï´Ù.');  
		document.silform.jumin1.focus();  
		return;  
	}  
	var uname = document.silform.username.value
	var jumin1 = document.silform.jumin1.value
	var jumin2 = document.silform.jumin2.value
	document.silform.submit();
}
//´Ù½ÃÀÛ¼º
function resetAll(){
      document.silform.reset();
}

//ÁֹιøÈ£ text ÀÚµ¿ À̵¿ function  
function next_move(obj)  
{  
	if (silform.jumin2.value.length > 5)  
	{  
		silform.jumin2.focus();  
	}  
}  
  
function prev_move(obj)  
{  
	if (silform.jumin1.value.length == 0)  
	{  
		silform.jumin1.focus();  
	}  
}  

function right(e)  
{  
	if ((navigator.appName == "Netscape") && (e.which == 3 || e.which == 2))  
	{  
		return false;  
	}  
	else if ((navigator.appName == "Microsoft Internet Explorer") && (event.button == 2 || event.button == 3))   
	{  
		alert("Welcome");  
		return false;  
	}  
	return true;  
}

//inputâ ¹é±×¶ó¿îµå
function clear(){
			document.silform.username.value = '';
			document.silform.jumin1.value = '';
}
function login_clear(type) {
	if (type == "username") {
		document.silform.username.style.backgroundImage = '';
	} else if (type == "jumin") {
		document.silform.jumin1.style.backgroundImage = '';
	}
}