var _expires = new Date();
	_expires.setTime(_expires.getTime() + (1000 * 3600 * 24 * 30));  
var _path = "/";
var _domain = false;
var _secure = false;

function setCookie(name, value) {
	var curCookie = name + "=" + escape(value) +
    	((_expires) ? "; expires=" + _expires.toGMTString() : "") +
      	((_path) ? "; path=" + _path : "") +
      	((_domain) ? "; domain=" + _domain : "") +
      	((_secure) ? "; _secure" : "");
  	document.cookie = curCookie;
}

function getCookie(name) {
	var dc = document.cookie;
	var prefix = name + "=";
	var begin = dc.indexOf("; " + prefix);
	var retVal = "";
	if (begin == -1) {
		begin = dc.indexOf(prefix);
		if (begin != 0) {
			retVal = null;
		}
	} else {
		begin += 2;
	}
	var end = document.cookie.indexOf(";", begin);
	if (end == -1) {end = dc.length;}

	retVal = (retVal != "") ? "UNKNOWN" : unescape(dc.substring(begin + prefix.length, end)) ;
	
	return retVal;
}

function deleteCookie($name) {
  if (getCookie($name)) {
    document.cookie = $name + "=" +
    ((_path) ? "; path=" + _path : "") +
    ((_domain) ? "; domain=" + _domain : "") +
    "; expires=Thu, 01-Jan-70 00:00:01 GMT";
  }
}