Stock Ticker 1.3

// ==UserScript==
// @name          Stock Ticker
// @description   Makes a stock ticker appear on the home page
// @author        boo [1544641]
// @include       http://www.torn.com/index.php*
// @include       https://www.torn.com/index.php*
// @version       1.3
// ==/UserScript==

$.get("stockexchange.php?step=portfolio&rfcv="+getCookie("rfc_v"), function(data) {
    var jqueryDocument = $(data);
    var stocks = [];
    jqueryDocument.find("li.info").each(function (i) {
        var currStock = {};
        currStock["title"] = $(this).parent().find(".logo img").prop("title");
        currStock["changeSign"] = ($(this).find(".change.down").length > 0 ? "down" : ($(this).find(".change.up").length > 0 ? "up" : "no change"));
        $(this).find(".price-wrap").each(function (i) {
            var firstRow = $(this).find(".first-row");
            var secondRow = $(this).find(".second-row");
            var fieldName = firstRow.find("span.bold").text().trim().slice(0, -1);
            firstRow.children().remove();
            currStock[fieldName] = firstRow.text().trim();
            if (secondRow.find(".value").length > 0) {
                if (secondRow.find(".value").length > 0) {
                    var fieldName = secondRow.find(".prop-wrap > .bold").text().trim().slice(0, -1);
                    currStock[fieldName] = secondRow.find(".value").text().trim();
                } else {
                    var fieldName = secondRow.find("span").text().trim().slice(0, -1);
                    secondRow.children().remove();
                    currStock[fieldName] = secondRow.text().trim();
                }
            }
        });
        stocks.push(currStock);
    });
    displayStockData(stocks);
});

function displayStockData (stockArray) {
    if (stockArray.length > 0) {
        var listContainer = document.createElement("ul");
        for (var i in stockArray) {
            var stock = stockArray[i];
            var li = document.createElement("li");
            var percent = stock['Change'].split("(")[1].slice(0,-3);
            var color = "";
            if (stock['changeSign']=='down') { var color = '#D83500'; }
            if (stock['changeSign']=='up') { var color = '#678C00'; }
            if (percent==0) { var color = '#A57B00'; stock['changeSign'] = 'no change'; }
            li.innerHTML = "<strong>"+stock['title']+"</strong> (<strong>"+abbrNum(parseInt(stock["Shares"].replace(/,/g,"")),2)+"</strong> shares <strong><span style='color:"+color+"'>"+percent+"%<span></strong> "+stock['changeSign']+")";
            listContainer.appendChild(li);
            listContainer.style.fontWeight = "normal";
            li.style.marginLeft = "15px";
            li.style.display = "inline-block";
        }
        listContainer.style.display = "inline-block";
        var marquee = document.createElement("marquee");
        marquee.appendChild(listContainer);
        marquee.style.height = "18px";
        marquee.style.lineHeight = "18px";
        listContainer.style.height = "100%";
        marquee.onmouseover = function () { marquee.scrollAmount = "2"; };
        marquee.onmouseout = function () { marquee.scrollAmount = "6"; };
        marquee.onclick = function () { window.location = "/stockexchange.php?step=portfolio"; };
        marquee.style.cursor = "pointer";
        var hr = document.createElement("hr");
        hr.className = "page-head-delimiter";
        $(".page-head-delimiter").first().after(hr).after(marquee);
    }
}

// abbrNum function from http://stackoverflow.com/questions/2685911/is-there-a-way-to-round-numbers-into-a-reader-friendly-format-e-g-1-1k
function abbrNum(number, decPlaces) {
    // 2 decimal places => 100, 3 => 1000, etc
    decPlaces = Math.pow(10,decPlaces);
    // Enumerate number abbreviations
    var abbrev = [ "k", "m", "b", "t" ];
    // Go through the array backwards, so we do the largest first
    for (var i=abbrev.length-1; i>=0; i--) {
        // Convert array index to "1000", "1000000", etc
        var size = Math.pow(10,(i+1)*3);
        // If the number is bigger or equal do the abbreviation
        if(size <= number) {
            // Here, we multiply by decPlaces, round, and then divide by decPlaces.
            // This gives us nice rounding to a particular decimal place.
            number = Math.round(number*decPlaces/size)/decPlaces;
            // Handle special case where we round up to the next abbreviation
            if((number == 1000) && (i < abbrev.length - 1)) {
                number = 1;
                i++;
            }
            // Add the letter for the abbreviation
            number += abbrev[i];
            // We are done... stop
            break;
        }
    }
    return number;
}