//°ø¹é¹®ÀÚ¸¦ Á¦°ÅÇÏ´Â ÇÔ¼ö
function jstrim(s) {
	while (s.charAt(0) == " ") {
		s = s.substr(1);
	}
	while (s.charAt(s.length-1) == " ") {
		s = s.substr(0, s.length-1);
	}
	return s;
}

function set_Answer(name) {
	if(document.getElementById(name).style.display == 'none'){
		document.getElementById(name).style.display = 'block';
	}else{
		document.getElementById(name).style.display = 'none';
	}
}