Web-site observer or how to get news fast

We have online issue tracker (web-site). Issues comes periodically and we need some application or maybe script which can observe page for ul's li elements and if one of them is new notify about it.

So I have tried to use FireFox GreaseMonkey script and it works fine, but not enough: we have an issue type which need following actions:

1) check issue's additional file name/date

2) click on link "More" inside issue and open new window with the list of files

3) in this second window I need to find link and notify user with attached link

so I need to pass file name/date as parameters from main page to the second page to get the right link

Unfortunately there is no possibility to use another more comfortable issue tracker, so guys extremely need help ))

// ==UserScript==
// @name        none
// @namespace   none.rw
// @version     1
// @grant       none
// ==/UserScript==


var mainSleepSeconds = 1;

var timerId;

(function(){

        // Start the script
        document.addEventListener('keydown', function(e) {
            // pressed ctrl+shift+s to start
            if (e.ctrlKey && e.shiftKey && e.keyCode == 83 && !e.altKey && !e.metaKey) {
                unsafeWindow.console.log("Start observer...");
                timerId = setInterval(main, mainSleepSeconds*1000);
            }

            // pressed ctrl+shift+q to stop
            if (e.ctrlKey && e.shiftKey && e.keyCode == 81 && !e.altKey && !e.metaKey) {
                unsafeWindow.console.log("Stop!");
                clearInterval(timerId);
            }
        }, false);

        var leftList

        function main() {
            unsafeWindow.console.log("main");

            // checking leftList is presents
            if (leftList == 'undefined' || leftList == null) {
                leftList = typeof document.getElementById("leftList") != 'undefined'
                        ? document.getElementById("leftList") : null;
            }

            if (leftList != null) {
                // getting <ul> under "scroller"
                var scrollerUl = document.getElementById("arScroll")
                                        .getElementsByClassName("scroller")[0]
                                        .getElementsByTagName("ul")[0];

                // getting list of <li>
                var list = scrollerUl.getElementsByTagName("li");
                for (var i=0; i < list.length; i++) {
                    if (list[i].className.indexOf("issue_") !== -1) {
                        //here if issue type 1 then send ajax (works)
                        //
                        //if issue type 2 - find elements "f-name", "f-date",       
                        //"More"
                        //and open link inside "More" in separate tab passing  two parameters from "f-name", "f-date".
                    }
                }
            }
        }       

        // this also not works (((
        function openInNewTab(url) {
            var win = window.open(url, '_blank');
            win.focus();
        }
    }
)();