function OpenNamedRPopup(url, name, width, height) {
	var rnd = (Math.round((Math.random()*999)+1));
        var top=Math.round((screen.height-height)/2);
        var left=Math.round((screen.width-width)/2);

        this.open(url, name, "top="+top+",left="+left+",width="+width+",height="+height+",buttons=no,scrollbars=yes,location=no,menubar=no,resizable=no,status=no,directories=no,toolbar=no");
}

function open_win(url, name, width, height) {
    this.open(url, name, "top=20, left=100, width="+width+", height="+height+", buttons=no,scrollbars=yes,location=no,menubar=no,resizable=no,status=no,directories=no,toolbar=no");
}