function reverse(eId){
	var f = document.getElementById(eId);

	for(var i = 0; i < f.length; i++){
		if(f[i].type == "checkbox"){
			if(f[i].checked){ f[i].checked = false; } else { f[i].checked = true; }
		}
	}
}

function listaction(eId, act){
	var cnt = 0;
	var f = document.getElementById(eId);

	for(var i = 0; i < f.length; i++){
		if(f[i].checked){ cnt++; }
	}

	if(cnt < 1){
		alert("¿øÇÏ´Â Ç׸ñÀ» ¼±ÅÃÇϼ¼¿ä");
	} else {
		if(act == "delete"){
			if(confirm("Çѹø »èÁ¦ÇÑ µ¥ÀÌÅÍ´Â ´Ù½Ã º¹±¸ÇÒ ¼ö ¾ø½À´Ï´Ù.\nÁ¤¸» »èÁ¦ÇϽðڽÀ´Ï±î?")){
				f.actkey.value = act;
				f.submit();
			}
		} else {
			f.actkey.value = act;
			f.submit();
		}
	}
}

function onlyNumber(){
	if((event.keyCode < 48)||(event.keyCode > 57))
		event.returnValue = false;
}

function title_show(title){
document.title = title;
}