function SetCookie( name, value, days ) 
{
    if ( days ) 
    {
        var date = new Date();
        date.setTime( date.getTime() + ( days * 24 * 60 * 60 * 1000 ) );
        var expires = "; expires=" + date.toGMTString();
    }
    else var expires = "";
    document.cookie = name + "=" + value + expires + "; path=/";
}

function GetCookie( name, defaultValue ) 
{
    var nameEQ = name + "=";
    var ca = document.cookie.split( ";" );
    for ( var i = 0; i < ca.length; i++ ) {
        var c = ca[i];
        while ( c.charAt( 0 ) == ' ' ) c = c.substring( 1, c.length );
        if ( c.indexOf( nameEQ ) == 0 ) return c.substring( nameEQ.length, c.length );
    }
    return defaultValue == undefined ? null : defaultValue;
}

function DeleteCookie( name ) 
{
    SetCookie( name, "", -1 );
}

function rnd() { 
    return String((new Date()).getTime()).replace(/\D/gi,'')
}