Prodota trade discussions: you have what? #$$$

// ==UserScript==
// @name	    Dota 2 & CSGO Lounge item price displayer
// @namespace   http://www.enygma.ro
// @version	 2.2
// @author	  Enygma
// @description Displays an item's lowest price offer from the Steam Community Market and helps to copy an item's name or to quickly open the market listings for an item.
// @license	 GPL version 3 or any later version; http://www.gnu.org/copyleft/gpl.html
// @include	 /^http(s)?://(www.)?dota2lounge.com//
// @include	 /^http(s)?://(www.)?csgolounge.com//
// @updateURL   http://userscripts.org/scripts/source/182588.user.js
// @downloadURL http://userscripts.org/scripts/source/182588.user.js
// @grant	   GM_xmlhttpRequest
// @grant	   GM_addStyle
// ==/UserScript==
// Determine on which site is the script being executed (dota2lounge or csgolounge)
if (document.URL.match(/^http(s)?:\/\/(www.)?dota2lounge.com\//)) {
   // Dota2 app ID on Steam's community market website.
   appID = 570;
   // Generic item placeholder names used by the d2l website and not existing in the Steam Market.
   genericItemPlaceholderNames = ["Offers", "Any Common", "Any Uncommon", "Any Rare", "Any Mythical", "Any Legendary",
							   "Any Ancient", "Any Immortal", "Real Money", "+ More", "Any Set"];
} else if (document.URL.match(/^http(s)?:\/\/(www.)?csgolounge.com\//)) {
   // CS:GO app ID on Steam's community market website.
   appID = 730;
   // Generic item placeholder names used by the csgolounge website and not existing in the Steam Market.
   genericItemPlaceholderNames = ["Any Offers", "Real Money", "Dota Items", "TF2 Items"];
}
// Main event listener for hovering items.
document.addEventListener("mouseover", function (event) {
   var itemElement = getItemElement(event);
   if (!itemElement) {
    return;
   }
   attachExtraPanelAndListeners(itemElement);
   getLowestPrice(itemElement);
})
// Get the hovered item, if any.
var getItemElement = function(mouseEvent) {
   var targetElement = mouseEvent.target;
   var itemElement = null;
   // Hover either the item element or its picture (child element).
   if (hasClass(targetElement, "item")) {
    itemElement = targetElement;
   } else if (hasClass(targetElement.parentNode, "item")) {
    itemElement = targetElement.parentNode;
   } else {
    return null;
   }
   // Avoid returning empty item slots.
   var itemNameElement = itemElement.querySelector(".name");
   if (!itemNameElement) {
    return null;
   }
   // Avoid returning generic item placeholders.
   var itemName = getItemName(itemElement);
   if (genericItemPlaceholderNames.indexOf(itemName) > -1) {
    return null;
   }
   return itemElement;
}
// Add to the specified item element an extra panel that contains the price information and a click handler to facilitate copying the item's name
var attachExtraPanelAndListeners = function(itemElement) {
   var itemNamePanel = itemElement.querySelector(".name");
   // If the extra panel already exists, stop here.
   var extraPanel = itemNamePanel.querySelector(".extraPanel");
   if (extraPanel) {
    return;
   }
   // Otherwise, create our own panel to append...
   extraPanel = document.createElement('div');
   extraPanel.innerHTML = "<span class='scriptStatus'>Ready</span>" +
    "<button type='button' class='extraButton refreshButton' title='Refresh'/>" +
    "<button type='button' class='extraButton steamMarketListingsButton' title='Show listings for the item on Steam Market'/>";
   extraPanel.setAttribute("class", "extraPanel");
   // ...and append it.
   itemNamePanel.appendChild(extraPanel);
   // Set click event handler for the item's name panel so that the item name can be copied to the clipboard easier.
   itemNamePanel.addEventListener("click", copyItemNameHandler, false);
   // Set click event handler for the refresh button that re-fetches the item's price.
   var refreshButton = extraPanel.querySelector(".refreshButton");
   refreshButton.addEventListener("click", function(event) {
    event.stopPropagation();
    getLowestPrice(itemElement, true);
   }, false);
   // Set click event handler for the Steam market listings button that opens in a new tab.
   var steamMarketListingsButton = extraPanel.querySelector(".steamMarketListingsButton");
   steamMarketListingsButton.addEventListener("click", function(event) {
    event.stopPropagation();
    showSteamMarketListings(itemElement);
   }, false);
}
// Get the lowest price for an item from the Steam market.
var getLowestPrice = function(itemElement, override) {
   var itemNameElement = itemElement.querySelector(".name");
   // Don`t try to get the price if we've already retrieved it.
   if (!override && itemNameElement.querySelector(".scriptStatus").innerHTML != "Ready") {
    return;
   }
   itemNameElement.querySelector(".scriptStatus").innerHTML = "Loading...";
   var url = getSteamMarketListingsURL(itemElement);
   GM_xmlhttpRequest({
    method: "GET",
    url: url,
    onload: function (response) {
	    var httpResponse = response.responseText;
	    var match = lowestPriceWithFeeRegExp.exec(httpResponse);
	    var priceWithFee = "<span class='" + (match ?
		    "itemMarketable'>" + match[1] :
		    "itemNotMarketable'>Not Marketable") +
		    "</span>";
	    match = lowestPriceWithoutFeeRegExp.exec(httpResponse);
	    var priceWithoutFee = match ? match[1] + " - without fee (seller receives)" : "";
	    itemNameElement.querySelector(".scriptStatus").innerHTML = "<span title='" + priceWithoutFee + "'>" + priceWithFee + "</span>";
    }
   });
}
// Computes the URL used to access the Steam market listings for a given item.
var getSteamMarketListingsURL = function(itemElement) {
   var itemName = getItemName(itemElement);
   var itemNameEncoded = encodeURIComponent(itemName);
   var url = "http://steamcommunity.com/market/listings/" + appID + "/" + itemNameEncoded + "/";
   return url;
}
// Extract the item's name from a DOM item element.
var getItemName = function(itemElement) {
   var itemNameElement = itemElement.querySelector(".name");
   var itemName = itemNameElement.querySelector("b").innerHTML.trim();
   return itemName;
}
// Cached RegExps used to read the item's value from the Steam page.
var lowestPriceWithFeeRegExp = /<span class="market_listing_price market_listing_price_with_fee">\s*(.*?)\s*<\/span>/i;
var lowestPriceWithoutFeeRegExp = /<span class="market_listing_price market_listing_price_without_fee">\s*(.*?)\s*<\/span>/i;
// Event handler to facilitate copying an item's name.
var copyItemNameHandler = function(event) {
   var clickedElement = event.target;
   // Avoid executing this handler if the "Remove item" button is clicked in a trade.
   if (excludedTags.indexOf(clickedElement.tagName) > -1 || excludedTags.indexOf(clickedElement.parentNode.tagName) > -1) {
    return;
   }
   // Stop the element's parent (item) from getting the click event. This stops the item from being selected.
   event.stopPropagation();
   // Make sure we select the item name element.
   var itemNameElement = clickedElement;
   while (!hasClass(itemNameElement, "name")) {
    itemNameElement = itemNameElement.parentNode;
   }
   // Get and display the item's name.
   var itemName = itemNameElement.querySelector("b").innerHTML.trim();
   window.prompt("Press CTRL+C to copy the item's name:", itemName);
}
// Tags that, if clicked on in an item name panel, should not execute the copyItemNameHandler.
var excludedTags = ["A", "IMG"];
// Opens a new tab with the Steam market listings of a given item.
var showSteamMarketListings = function(itemElement) {
   var url = getSteamMarketListingsURL(itemElement);
   var win = window.open(url, "_blank");
   if (win) {
    // Browser has allowed it to be opened.
    win.focus();
   } else {
    // Broswer has blocked it.
    alert("Please allow popups for this site in order to open the Steam market listings.");
   }
}
// Helper method to check if an element has the specified class name.
var hasClass = function(element, cls) {
   return element && (" " + element.className + " ").indexOf( " " + cls + " " ) > -1;
}
// Style.
GM_addStyle(".itemNotMarketable { color : red } .itemMarketable { color: green } .extraButton { margin-left: 0.3em; vertical-align: top; margin-top: -0.1em; border: 0; padding: 0; width: 16px; height: 16px; }");
GM_addStyle(".refreshButton { background: url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAABOUlEQVQ4jc2RsUoDQRCGv32CXECzdjaWRiOCVSA+RdqAL6BFesUXOPUFbCWKJ2thkcRgxCa3cJUEQuCwExRjCi1sxiKXsElO6wz81e58888/sPhlESwxlhNaeP/+zRnO/wCMNaBDIbVZG/ztppLcLYdpgK3uSFgGc05WAnbX7pTcD5FCQ8lyMDOlQ4mQaO8lcRI6Q7wATxsGR32k9YUc9RFtiL1gZsoTq1jk7D3JxLEeFNtKLj6ZqNhWkppHSOvxO3GRFlb3J3mc2VEb/I2mktM3Jtp5UKINgUuProYJoMO+C8jWyGhDXO0hl0Ok2hutma2RcR1UsMjx6ySoA9fJkqGUryu5+UDydSW5azbn1wiJyjFSjp3bO4lrg19opJzacZEhJMIi688juYBkFT+9eRpUGYOmbr6Q9QvwBrFqSdh8NgAAAABJRU5ErkJggg==) no-repeat left center; }");
GM_addStyle(".steamMarketListingsButton { background: url(data:image/png;base64,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) no-repeat left center; }");