function strchk(field)
{ 
	var valid = "0123456789abcdefghijklmnopqrstuvwxyz";
	var ok = "yes"; 
	var temp; 
	for (var i=0; i<field.value.length; i++)
	{ 
		temp = "" + field.value.substring(i, i+1); 
		if(valid.indexOf(temp) == "-1") ok = "no"; 
	} 
	if(ok == "no") 
	{ 
		alert("¼ýÀÚ¿Í ¿µ¼Ò¹®ÀÚ¸¸ ÀÔ·Â °¡´ÉÇÕ´Ï´Ù!"); 
		field.value = "";
		field.focus();
    }
}

function validate(field)
{ 
	var valid = "0123456789";
	var ok = "yes"; 
	var temp; 
	for (var i=0; i<field.value.length; i++)
	{ 
		temp = "" + field.value.substring(i, i+1); 
		if (valid.indexOf(temp) == "-1") ok = "no"; 
	} 
	if(ok == "no") 
	{ 
		alert("¼ýÀÚ¸¸ ÀÔ·Â °¡´ÉÇÕ´Ï´Ù"); 
		field.value = "";
		field.focus();
    } 
} 

function idcheck() 
{ 
	if(memform.id.value == "")
	{
		alert("ID¸¦ ÀÔ·ÂÇϼ¼¿ä!");
		memform.id.focus();
		return ;	
	}
	if(memform.id.value.length < 4)
	{
		alert("ID´Â 4~12ÀÚ±îÁö °¡´ÉÇÕ´Ï´Ù!");
 		memform.id.value="";
		memform.id.focus();
		return ;	
	}	
            
	window.open("id_check.asp?id="+memform.id.value,"¾ÆÀ̵ðÁߺ¹Ã¼Å©","width=300,height=200");
	 	  					
}

function radio_checked(radio_b)
{
	for(var i=0;i < radio_b.length;i=i+1)
	{
		if (radio_b[i].checked == true) 
                {       
			return 1;
		}
	}
	radio_b[0].focus();
	return 0;
}

function formcheck()
{
	if(memform.id.value == "")
	{
		alert("ID¸¦ ÀÔ·ÂÇϼ¼¿ä!");
		memform.id.focus();
		return;	
	}

	if(memform.id.value.length < 4)
	{
		alert("ID´Â 4~12ÀÚ±îÁö °¡´ÉÇÕ´Ï´Ù!");
 		memform.id.value="";
		memform.id.focus();
		return;	
	}

	if(memform.passwd1.value == "")
	{
		alert("ºñ¹Ð¹øÈ£¸¦ ÀÔ·ÂÇϼ¼¿ä!");
		memform.passwd1.focus();
		return;	
	}

	if(memform.passwd1.value.length < 4)
	{
		alert("ºñ¹Ð¹øÈ£´Â 4~12ÀÚ±îÁö °¡´ÉÇÕ´Ï´Ù!");
 		memform.passwd1.value="";
		memform.passwd1.focus();
		return;	
	}

	if(memform.passwd2.value == "")
	{
		alert("ºñ¹Ð¹øÈ£ È®ÀÎÀ» ÀÔ·ÂÇϼ¼¿ä!");
		memform.passwd2.focus();
		return;	
	}

	if(memform.passwd2.value.length < 4)
	{
		alert("ºñ¹Ð¹øÈ£´Â 4~12ÀÚ±îÁö °¡´ÉÇÕ´Ï´Ù!");
 		memform.passwd2.value="";
		memform.passwd2.focus();
		return;	
	}

	if(memform.passwd1.value != memform.passwd2.value)
	{
		alert("ºñ¹Ð¹øÈ£°¡ ¸ÂÁö ¾Ê½À´Ï´Ù!");
		memform.passwd2.value="";
		memform.passwd2.focus();
		return;	
	}

	if(memform.email.value == "")
	{
		alert("¸ÞÀÏÁÖ¼Ò¸¦ ÀÔ·ÂÇϼ¼¿ä!");
		memform.email.focus();
		return;
	}
	
	var str = memform.email.value;

	if(str != "")
	{
		if(str.indexOf('@') == -1 || str.indexOf('.') == -1) 
		{
			alert("¿Ã¹Ù¸¥ e-mailÇü½ÄÀÌ ¾Æ´Õ´Ï´Ù.\n ´Ù½ÃÀÔ·ÂÇϼ¼¿ä!")
			memform.email.value = "";
			memform.email.focus();
			return;
		}
	}

	if(memform.name.value == "")
	{
		alert("À̸§À» ÀÔ·ÂÇϼ¼¿ä!");
		memform.name.focus();
		return;
	}

	if(! radio_checked(memform.sex))
	{
		alert("¼ºº°À» üũÇØÁÖ¼¼¿ä!");
		return;
	}

	if(memform.country.value == "")
	{
		alert("±¹°¡¸íÀ» ÀÔ·ÂÇϼ¼¿ä!");
		memform.country.focus();
		return;
	}

	if(memform.city.value == "")
	{
		alert("µµ½Ã¸íÀ» ÀÔ·ÂÇϼ¼¿ä!");
		memform.city.focus();
		return;
	}
	
	if(memform.address.value == "")
	{
		alert("ÁÖ¼Ò¸¦ ÀÔ·ÂÇϼ¼¿ä!");
		memform.address.focus();
		return;
	}

	if(! radio_checked(memform.gubun))
	{
		alert("ÁÖ¼ÒÁö¸¦ üũÇϼ¼¿ä!");
		return;
	}

	if(memform.phone.value == "")
	{
		alert("ÀüÈ­¹øÈ£¸¦ ÀÔ·ÂÇϼ¼¿ä!");
		memform.phone.focus();
		return;
	}
	
	if(memform.birthyy.value != "" && memform.birthyy.value.length < 4)
	{
		alert("³¯Â¥Çü½Ä¿¡ ¸Â°Ô ÀÔ·ÂÇϼ¼¿ä!");
		memform.birthyy.focus();
		return;
	}

	if(memform.birthmm.value != "" && memform.birthmm.value.length < 2)
	{
		alert("³¯Â¥Çü½Ä¿¡ ¸Â°Ô ÀÔ·ÂÇϼ¼¿ä!");
		memform.birthmm.focus();
		return;
	}

	if(memform.birthdd.value != "" && memform.birthdd.value.length < 2)
	{
		alert("³¯Â¥Çü½Ä¿¡ ¸Â°Ô ÀÔ·ÂÇϼ¼¿ä!");
		memform.birthdd.focus();
		return;
	}

	memform.submit();
}

function reset()
{
	memform.reset();
}