NeoQuest 1 Attacker

// ==UserScript==
// @name Neoquest Attacker
// @namespace http://userscripts.org/users/useridnumber
// @include http://www.neopets.com/games/neoquest/*
// ==/UserScript==

function findLinkContainingString(myStr) {
    var aTags = document.getElementsByTagName("a");
    var searchText = myStr;
    var found;

    for (var i = 0; i < aTags.length; i++) {
        if (aTags[i].textContent.search(searchText) != -1) {
            console.log("Found tag with textContent: " + aTags[i].textContent);
            found = aTags[i];
            break;
        }
    }
    return found;
}

function getHealForPotion(potion) {
    var link = findLinkContainingString(potion);
    if (link == null) {
        return 0;
    }
    return parseInt(link.textContent.match(/(\d+)/)[0])
}

function findBestPotion() {
    var bestPotion;
    var weakHeal = getHealForPotion("Weak Healing Potion");
    var standardHeal = getHealForPotion("Standard Healing Potion");
    var strongHeal = getHealForPotion("Strong Healing Potion");
    var greatHeal = getHealForPotion("Greater Healing Potion");
    var superiorHeal = getHealForPotion("Superior Healing Potion");

    //
    // Get weakest potion that will give full heal
    //
    if (weakHeal >= healthLost) { bestPotion = findLinkContainingString("Weak Healing Potion"); }
    if (standardHeal >= healthLost) { bestPotion = findLinkContainingString("Standard Healing Potion"); }
    if (strongHeal >= healthLost) { bestPotion = findLinkContainingString("Strong Healing Potion"); }
    if (greatHeal >= healthLost) { bestPotion = findLinkContainingString("Greater Healing Potion"); }
    if (superiorHeal >= healthLost) { bestPotion = findLinkContainingString("Superior Healing Potion"); }

    //
    // If no potion gives full heal, find strongest in stock.
    //
    if (bestPotion == null) {
        if (superiorHeal > 0) { bestPotion = findLinkContainingString("Superior Healing Potion"); }
        else if (greatHeal > 0) { bestPotion = findLinkContainingString("Greater Healing Potion"); }
        else if (strongHeal > 0) { bestPotion = findLinkContainingString("Strong Healing Potion"); }
        else if (standardHeal > 0) { bestPotion = findLinkContainingString("Standard Healing Potion"); }
        else if (weakHeal > 0) { bestPotion = findLinkContainingString("Weak Healing Potion"); }
    }
    return bestPotion;
}

var neoquest=document.body.innerHTML.split('NeoQuest is brought to you by')[1];
var healthString = neoquest.split('Health: ')[1].split(" ")[0].replace(/<[\/]{0,1}(b|B)[^><]*>/g,"");
var health = eval(healthString);
var healthLost = parseInt(healthString.split("/")[1]) - parseInt(healthString.split("/")[0])

if(neoquest.search('to see what you found')!=-1){
    location.href='http://www.neopets.com/games/neoquest/neoquest.phtml';
}
for(i=0;i<document.forms.length;i++){
    if(document.forms[i].elements[0].value=="Click here to return to the map"){
        document.forms[i].submit();
    }
}

if(neoquest.search('navarrows.gif')!=-1){
    location.href='http://www.neopets.com/games/neoquest/neoquest.phtml?action=move&movedir=';
}
if(neoquest.search('to begin the fight')!=-1){
    location.href='http://www.neopets.com/games/neoquest/neoquest.phtml';
}

//
// We need to heal
//
if(health<(0.5)&&((neoquest.search('Spirit of Growth')!=-1)||(neoquest.search('Healing Potion')!=-1))){
    if(neoquest.search('Spirit of Growth')!=-1){
        findLinkContainingString("Spirit of Growth").click();

    }else if(neoquest.search('Healing Potion')!=-1){
        findBestPotion().click();
    }

//
// Attack
//
} else if(neoquest.search('Attack')!=-1){
    findLinkContainingString("Attack").click();

} else if(neoquest.search('Do nothing')!=-1){
    findLinkContainingString("Do nothing").click();
}