function mem_pre() {
	
	 with(document.name_confirm) {
		 
		if (agree.checked == false)
		{
			alert("ÀÌ¿ë¾à°ü¿¡ µ¿ÀÇÇϼžßÇÕ´Ï´Ù.");
			return; 
		}
		
		if (name.value == "")
		{
			alert("À̸§À» ÀÔ·ÂÇØ ÁÖ¼¼¿ä!");
			name.focus();
			return; 
		}
		
		if (jumin1.value == "")
		{
			alert("Áֹεî·Ï¹øÈ£¸¦ ÀÔ·ÂÇØ ÁÖ¼¼¿ä!");
			jumin1.focus();
			return; 
		}
		
		if (jumin2.value == "")
		{
			alert("Áֹεî·Ï¹øÈ£¸¦ ÀÔ·ÂÇØ ÁÖ¼¼¿ä!");
			jumin2.focus();
			return; 
		}
		
		/*Áֹεî·Ï¹øÈ£°¡ ¿Ã¹Ù¸¥ ¹øÈ£ÀÎÁö È®ÀÎÇÏ´Â ºÎºÐ*/
		var year = jumin1.value.substring(0,2) ;
		var month = jumin1.value.substring(2,4) ;
		var day = jumin1.value.substring(4,6) ;
		var sex = jumin2.value.substring(0,1) ;

		if ((year < 25 || month <1 || month >12 ||day <1 || day > 31) )
		{	alert("Áֹεî·Ï¹øÈ£°¡ ¿Ã¹Ù¸£Áö ¾Ê½À´Ï´Ù.\n\nÁֹιøÈ£¸¦ ´Ù½Ã È®ÀÎÇØ Áֽñ⠹ٶø´Ï´Ù.");
		    jumin1.value="";
		    jumin2.value="";
			jumin1.focus();
			return;
		}
		if ((sex != 1 && sex != 2) || (jumin2.value.length != 7) )
		{
			alert("Áֹεî·Ï¹øÈ£°¡ ¿Ã¹Ù¸£Áö ¾Ê½À´Ï´Ù.\n\nÁֹιøÈ£¸¦ ´Ù½Ã È®ÀÎÇØ Áֽñ⠹ٶø´Ï´Ù.");
			jumin1.value="";
			jumin2.value="";
			jumin1.focus();
			return;
		}

		var val = 0 ;

		for (i=0;i<=5;i++)
		{
			val = val + ((i%8+2) * parseInt(jumin1.value.substring(i,i+1))) ;
		}
		for (i=6;i<=11;i++)
		{
			val = val + ((i%8+2) * parseInt(jumin2.value.substring(i-6,i-5))) ;
		}

		val = 11 - (val %11) ;
		val = val % 10 ;

		if (val != jumin2.value.substring(6,7))
		{	alert("Áֹεî·Ï¹øÈ£°¡ ¿Ã¹Ù¸£Áö ¾Ê½À´Ï´Ù.\n\nÁֹιøÈ£¸¦ ´Ù½Ã È®ÀÎÇØ Áֽñ⠹ٶø´Ï´Ù.");
			jumin1.focus();
			return;
		}
		
		if (jumin_chk.value == "")
		{
			alert("½Ç¸íÈ®ÀÎÀ» ÇÏ¼Å¾ß ÇÕ´Ï´Ù.!");
			jumin2.focus();
			return; 
		}
		

			method = 'post';
      action = 'join_write.asp';
      submit();
      false;
				
       
    }    
 }
 
 
 function check_jumin()
 {
	 document.name_confirm.jumin_chk.value = "";
	 if (document.name_confirm.name.value == "")
		{
			alert("À̸§À» ÀÔ·ÂÇØ ÁÖ¼¼¿ä!");
			document.name_confirm.name.focus();
			return; 
		}
		
		if (document.name_confirm.jumin1.value == "")
		{
			alert("Áֹεî·Ï¹øÈ£¸¦ ÀÔ·ÂÇØ ÁÖ¼¼¿ä!");
			document.name_confirm.jumin1.focus();
			return; 
		}
		
		if (document.name_confirm.jumin2.value == "")
		{
			alert("Áֹεî·Ï¹øÈ£¸¦ ÀÔ·ÂÇØ ÁÖ¼¼¿ä!");
			document.name_confirm.jumin2.focus();
			return; 
		}
		
		
		/*Áֹεî·Ï¹øÈ£°¡ ¿Ã¹Ù¸¥ ¹øÈ£ÀÎÁö È®ÀÎÇÏ´Â ºÎºÐ*/
		var year = document.name_confirm.jumin1.value.substring(0,2) ;
		var month = document.name_confirm.jumin1.value.substring(2,4) ;
		var day = document.name_confirm.jumin1.value.substring(4,6) ;
		var sex = document.name_confirm.jumin2.value.substring(0,1) ;

		if ((year < 25 || month <1 || month >12 ||day <1 || day > 31) )
		{	alert("Áֹεî·Ï¹øÈ£°¡ ¿Ã¹Ù¸£Áö ¾Ê½À´Ï´Ù.\n\nÁֹιøÈ£¸¦ ´Ù½Ã È®ÀÎÇØ Áֽñ⠹ٶø´Ï´Ù.");
		    document.name_confirm.jumin1.value="";
		    document.name_confirm.jumin2.value="";
			document.name_confirm.jumin1.focus();
			return;
		}
		if ((sex != 1 && sex != 2) || (document.name_confirm.jumin2.value.length != 7) )
		{
			alert("Áֹεî·Ï¹øÈ£°¡ ¿Ã¹Ù¸£Áö ¾Ê½À´Ï´Ù.\n\nÁֹιøÈ£¸¦ ´Ù½Ã È®ÀÎÇØ Áֽñ⠹ٶø´Ï´Ù.");
			document.name_confirm.jumin1.value="";
			document.name_confirm.jumin2.value="";
			document.name_confirm.jumin1.focus();
			return;
		}

		var val = 0 ;

		for (i=0;i<=5;i++)
		{
			val = val + ((i%8+2) * parseInt(document.name_confirm.jumin1.value.substring(i,i+1))) ;
		}
		for (i=6;i<=11;i++)
		{
			val = val + ((i%8+2) * parseInt(document.name_confirm.jumin2.value.substring(i-6,i-5))) ;
		}

		val = 11 - (val %11) ;
		val = val % 10 ;

		if (val != document.name_confirm.jumin2.value.substring(6,7))
		{	alert("Áֹεî·Ï¹øÈ£°¡ ¿Ã¹Ù¸£Áö ¾Ê½À´Ï´Ù.\n\nÁֹιøÈ£¸¦ ´Ù½Ã È®ÀÎÇØ Áֽñ⠹ٶø´Ï´Ù.");
			document.name_confirm.jumin1.focus();
			return;
		}
		
		
		document.name_confirm.jumin_chk.value = "01";
		alert("½Ç¸íÀÎÁõÀÌ Á¤»óÀûÀ¸·Î 󸮵Ǿú½À´Ï´Ù.");
		//return false;
		
 }
 
  //ÀԷ¹ڽº Æ÷Ä¿½º À̵¿
  function moveFocus(Num, FromObj, ToObj) 
    {
    
	  var strLen = FromObj.value.length;
	  if(strLen == Num)
  	  ToObj.focus();
    }