function check(form)
{
	var whitespace = " \t\n\r";
	var chkarr;
	
	function isEmpty(s)
	{
		return((s==null) || (s.length == 0))
	}

	function isWhitespace(s)
	{
		var i;
		if(isEmpty(s)) return true;
		for(i=0;i<s.length;i++)
		{
			var c = s.charAt(i);
			if(whitespace.indexOf(c) == -1) return false;
		}
		return true;
	}

	if(isWhitespace(form.name.value))
	{
		alert('À̸§À» ÀÔ·ÂÇϼ¼¿ä');
		form.name.focus();
		form.name.select();
		return false;
	}
	if(isWhitespace(form.title.value))
	{
		alert('Á¦¸ñÀ» ÀÔ·ÂÇϼ¼¿ä');
		form.title.focus();
		form.title.select();
		return false;
	}
	if(isWhitespace(form.passwd.value))
	{
		alert('ºñ¹Ð¹øÈ£¸¦ ÀÔ·ÂÇϼ¼¿ä');
		form.passwd.focus();
		form.passwd.select();
		return false;
	}
	if(isWhitespace(form.contents.value))
	{
		alert('³»¿ëÀ» ÀÔ·ÂÇϼ¼¿ä');
		form.contents.focus();
		form.contents.select();
		return false;
	}	
	if(form.email.value)
	{
		email = form.email.value;
		if (((email.indexOf("@") < 1) || (email.indexOf("@") > email.length-4)) || (email.indexOf("@") > email.indexOf(".")) )
		{
		  alert('¸ÞÀÏÁÖ¼Ò°¡ ¿Ã¹Ù¸£Áö ¾Ê½À´Ï´Ù.');
		  form.email.select();
		  form.email.focus();
		  return false;
		 }
	 }
}


function del(form)
{
		if(confirm('Á¤¸» »èÁ¦ÇϽðڽÀ´Ï±î?')) true;
		else return false;
}

function search_check(form)
{
	if(!form.search.value)
	{
		alert('°Ë»ö¾î¸¦ ÀÔ·ÂÇØ ÁÖ¼¼¿ä');
		form.search.focus();
		return false;
	}
}

function change()
  {
     location.href = "index.html?sort=" +  document.select_form.sort.value
  }

function del_check(form1){
	if(confirm('Á¤¸» »èÁ¦ÇϽðڽÀ´Ï±î?'))form1.submit();
	else false;
}  
  

function space(form)
{
	if(!form.name.value)
	{
		alert('À̸§À» ÀÔ·ÂÇØ ÁÖ¼¼¿ä');
		form.name.focus();
		return false;
	}
	else
	{
	var str = form.name.value;
	var str2;
	var str3 = "";
	var str2 = str.split(" ");
	for(var i=0; i < str2.length ; i++)
	{
		str3 += str2[i];
	}
	form.name.value = str3;
	}
}


function checkall(form)
{
	var len = form.length;
	for(i=0;i<len;i++)
	{
		if(form[i].checked == false) 
		{
			form[i].checked = true;
			form.btn.value="Àüü ÇØÁ¦";
		}
		else 
		{
			form[i].checked = false;
			form.btn.value="Àüü ¼±ÅÃ";
		}
	}
}