function setCookie( name, value, expiredays )  {
	var today = new Date();
	today.setDate( today.getDate() + expiredays );
	document.cookie = name + "=" + escape( value ) + "; path=/; expires=" + today.toGMTString() + ";";
}
function getCookie( name )  {
        var flag = document.cookie.indexOf(name+'=');
        if( flag != -1 )  {
                flag += name.length + 1
                end = document.cookie.indexOf(';', flag)
                if (end == -1) end = document.cookie.length
                return unescape( document.cookie.substring(flag, end) );
        }
}