if(!addedOuterListeners) {
    chrome.browserAction.onClicked.addListener(function () {
        if(!addedInnerListener){
            chrome.extension.onMessage.addListener(function (request, sender) {
                var viewTabUrl = chrome.extension.getURL('popup.html?id=' + id++);
                if (request.action == "getScrenShot") {
                    chrome.tabs.create({ url: viewTabUrl }, function (tab) {
                        var selfTabId = tab.id;
                        chrome.tabs.onUpdated.addListener(function (tabId, changeInfo, tab) {
                            if (changeInfo.status == "complete" && tabId == selfTabId) {
                                var tabs = chrome.extension.getViews({ type: "tab" });
                                tabs[0].placePicture(request.img);
                            }
                        });
                    });
                }
            });
            addedInnerListener = !addedInnerListener;
        }

        chrome.tabs.executeScript(null, {
            file: "libs/tinyColor.js"
        }, function () {
            // If you try and inject into an extensions page or the webstore/NTP you'll get an error
            if (chrome.extension.lastError) {
                alert(chrome.extension.lastError.message);
                message.innerText = 'There was an error injecting script : \n' + chrome.extension.lastError.message;
            }
        });

        chrome.tabs.executeScript(null, {
            file: "libs/html2canvas.js"
        }, function () {
            // If you try and inject into an extensions page or the webstore/NTP you'll get an error
            if (chrome.extension.lastError) {
                alert(chrome.extension.lastError.message);
                message.innerText = 'There was an error injecting script : \n' + chrome.extension.lastError.message;
            }
        });

        if (false) {
            chrome.tabs.executeScript(null, {
                file: "scripts/screenShotFull.js"
            }, function () {
                // If you try and inject into an extensions page or the webstore/NTP you'll get an error
                if (chrome.extension.lastError) {
                    alert(chrome.extension.lastError.message);
                    message.innerText = 'There was an error injecting script : \n' + chrome.extension.lastError.message;
                }
            });
        } else {
            chrome.tabs.executeScript(null, {
                file: "scripts/screenShotPartial.js"
            }, function () {
                // If you try and inject into an extensions page or the webstore/NTP you'll get an error
                if (chrome.extension.lastError) {
                    alert(chrome.extension.lastError.message);
                    message.innerText = 'There was an error injecting script : \n' + chrome.extension.lastError.message;
                }
            });
        }