Userscripts.org

// ==UserScript==
// @name MythWeb Navigation Hack
// @description Use left/right arrow keys to show earlier/later MythWeb guide.
// @match http://*/mythweb/tv/list
// @match https://*/mythweb/tv/list
// ==/UserScript==

// XPaths for the links we want to 'click', you may need to change these depending on
// MythWeb versions.
var earlierXPath = "//a[@class='link'][@name='anchor1']";
var laterXPath = '/html/body/div[2]/table/tbody/tr/td[14]/a';
var nextDayXPath = '/html/body/div[2]/div/form/table/tbody/tr/td[3]/a[2]';
var prevDayXPath = '/html/body/div[2]/div/form/table/tbody/tr/td[3]/a';

// The key codes we want to bind to - these are default the left and right arrows.
// Change as required.
var earlierKeyCode = 37;
var laterKeyCode = 39;

// Functions.
function get_link(path){
results = document.evaluate(path,
document, null, XPathResult.UNORDERED_NODE_SNAPSHOT_TYPE, null);
return results.snapshotItem(0);
}

function callback(event){
var navPath = null;
switch (event.keyCode){

case earlierKeyCode:
//shift as toggle between time / day
if(event.shiftKey ) {
navPath = prevDayXPath;

} else {
navPath = earlierXPath;
}
break;
case laterKeyCode:
//shift as toggle between time / day
if(event.shiftKey ) {
navPath = nextDayXPath;

} else {
navPath = laterXPath;
}
break;
default: return;
}
var link = get_link(navPath);
fire(link, 'click');
//window.setTimeout(get_link(navPath).getAttribute('onclick'), 0);
}

function fire(element, event){
var evt = document.createEvent("HTMLEvents");
evt.initEvent(event, true, true ); // event type,bubbling,cancelable
return !element.dispatchEvent(evt);
}

// Setup listener.
document.addEventListener('keydown', callback, true);