function getCookie(name) {
	var arg = name + "=";
	var alen = arg.length;
	var clen = document.cookie.length;
	var i = 0;
	while (i < clen) {
		var j = i + alen;
		if (document.cookie.substring(i,j) == arg) {
			return getCookieVal (j);
		}
		i = document.cookie.indexOf(" ",i)+1;
		if (i == 0) {
			break;
		}
	}
	return null;
}

function setCookie(name,value) {
	var argv = setCookie.arguments;
	var argc = setCookie.arguments.length;
	var expires = (argc > 2) ? argv[2] : null;
	var path = (argc > 3) ? argv[3] : null;
	var domain = (argc > 4) ? argv[4] : null;
	var secure = (argc > 5) ? argv[5] : false;
	document.cookie =	name + "=" + escape(value) +
						((expires == null) ? "" : ("; expires=" + expires.toGMTString())) +
						((path == null) ? "" : ("; path=" + path)) +
						((domain == null) ? "" : ("; domain=" + domain)) +
						((secure == true) ? "; secure" : "");
}

function deleteCookie (name) {
	var exp = new Date();
	exp.setTime (exp.getTime() - 1);
	var cval = getCookie (name);
	document.cookie = name + "=" + cval + "; expires=" + exp.toGMTString();
}

function getCookieVal(offset) {
	var endstr = document.cookie.indexOf (";", offset);
	if (endstr == -1) {
		endstr = document.cookie.length;
	}
	return unescape(document.cookie.substring(offset, endstr));
}

function checkCount(name) {
	var count = getCookie(name);
	if (count == null) {
		count=1;
		setCookie(name,count,exp);
		return true;
	} else {
		count++;
		setCookie(name,count,exp);
		return false;
	}
}