function idFormCheck(obj)
	{
		if(document.all[obj.name].value == "") {
			alert("ID¸¦ ÀÔ·ÂÇØ ÁÖ¼¼¿ä.");
			document.all[obj.name].focus();
			return false;
		}
		else{
			var str = document.all[obj.name].value;

			if(str.length < 4 || str.length > 16){
			alert("ȸ¿ø ¾ÆÀ̵ð´Â 4ÀÚÀÌ»ó 15ÀÚ ÀÌÇÏ·Î ÀÔ·ÂÇϼ¼¿ä.");
			document.all[obj.name].focus();
			return false;
			}
		}
		var url = "./chUser/LoginIDCheck.aspx", arg = "";
		if ( document.all[obj.name].value != "" )
			arg = "?m_id="+document.all[obj.name].value;

		var win = window.open( url+arg, "IdCheckWin", "width=300,height=180,resizable=0,left=310,top=320" );
		if ( win.focus )
			win.focus();
		return false;
	}
	function UrlFormCheck(obj)
	{
		if(document.all[obj.name].value == "") {
			alert("µµ¸ÞÀÎÀ» ÀÔ·ÂÇØ ÁÖ¼¼¿ä.");
			document.all[obj.name].focus();
			return false;
		}
		var url = "./Chweblog/UrlExistCheck.aspx", arg = "";
		if ( document.all[obj.name].value != "" )
			arg = "?url="+document.all[obj.name].value;

		var win = window.open( url+arg, "UrlCheckWin", "width=350,height=180,resizable=0,left=310,top=320" );
		if ( win.focus )
			win.focus();
		return false;
	}