var urlPath = 'http://cbktu.or.kr/';
function imageRoll1(a,b) {
	imga = eval(a);
	imgb = eval(b);

	imga.src = urlPath+"images/"+a+"_1.gif";
	imgb.src = urlPath+"images/"+b+"_0.gif";
}
function imageRoll2(a,b,c) {
	imga = eval(a);
	imgb = eval(b);
	imgc = eval(c);

	imga.src = urlPath+"images/"+a+"_1.gif";
	imgb.src = urlPath+"images/"+b+"_0.gif";
	imgc.src = urlPath+"images/"+c+"_0.gif";
}