if (mdnext == 1) {
                        $(_butMode).attr("src", chrome.extension.getURL("img/ontop.png"));
                        $(_butMode).attr("title", "Scans displayed on top of each other (click to switch display mode for this manga only)");
                    } else if (mdnext == 2) {
                        $(_butMode).attr("src", chrome.extension.getURL("img/righttoleft.png"));