function SetCookie(cookieName,cookieValue,nDays) {
	var today = new Date();
	var expire = new Date();
	if (nDays==null || nDays==0) nDays=1;
	expire.setTime(today.getTime() + 3600000*24*nDays);
	document.cookie = cookieName+"="+escape(cookieValue) + ";expires="+expire.toGMTString();
	}

var selquest='';
function showHide(question) {
        for (var i=1; i<=7; i++) { document.getElementById('quest'+i).style.display='none'; }
        if (selquest==question) {
                document.getElementById(question).style.display='none';
                selquest='';
                } else {
                document.getElementById(question).style.display='block';
                selquest=question;
                }
        }