for last-minute.de rough copy

price-converter.user.js

// ==UserScript==
// @name PriceConverter
// @author Тарас Лабяк
// @namespace Alim
// @version 1.0
// @description Збільшує ціни на 20% (ціни діляться на 0.8)
// @encoding utf-8
// ==/UserScript==
// atch http://*last-minute.de/
// atch http://*traveltainment.de/
// http://wiki.plemiona.pl/wiki/Poradnik:Skrypty

var regex = /[0-9]+/;
 
var priceNodes = [];

function pushNodes(obj) {
    switch (obj.constructor) {
        case String.prototype.constructor:
            this.current = document.getElementsByClassName(obj);
            break;
        case NodeList.constructor:
            this.current = obj;
            break;
        default:
            return false;
    }
    if (this.current.length > 0)
        console.log(obj + ' ' + this.current.length);
    return priceNodes.push(this.current);
}

pushNodes.prototype.current = [];

Array.prototype.pushNodes = function(obj) {
    if (obj instanceof Array || obj instanceof NodeList && obj.length > 0) {
        for(var i=0; i<obj.length; i++)
            this.push(obj[i]);
        return true;
    }
    else if(obj instanceof Node) {
        this.push(obj);
        return true;
    }
    return false;
}

function getParentElementByTagName(element, name) {
    name = name.toUpperCase();
    for(var parent = element;
        (parent = parent.parentElement) && !name.equals(parent.tagName););
    return parent;
}
 
function convert() {
    if (pushNodes('terRe'))
        pushNodes('tervakpreis')
    else if (pushNodes('preisbuchung')) {
        var elems = getParentElementByTagName(pushNodes.current, 'tbody');
        for (var i=0; i<2;)
            if(elems[i] instanceof Element) {
                priceNodes.pushNodes(elems[i]);
                i++;
            }
    }
    else
        pushNodes('preis');
   
    for (var i=0; i<priceNodes.length; i++) {
        var priceNode = priceNodes[i];
        var priceString = priceNode.innerHTML;
        if (!regex.test(priceString))
            continue;
        var price = regex.exec(priceString)[0];
        price = eval(price);
        price = price/0.8;
        price = Math.ceil(price);
        priceNode.innerHTML = priceString.replace(regex, price);
    }
 
}

window.safeEvent('onload');
window.onload = convert;
//TrT_onL = convert;
/*Object.defineProperty(window, 'TrT_onL', {
    set: function (value) {
        alert('hello');
    },
 
    get: function () {
        return convert;
    }
})
 
    var old_onload = onload;
    _onloads = [];
    delete onload;
    _onload = function(event) {
        alert(_onloads.length);
        for(var i=0; i<_onloads.length; i++)
            (_onloads[i])(event);
    }
    //_onloads.push(old_onload);

    Object.defineProperty(window, 'onload', {
        set: function(callback) {
            if (callback && !_onloads.contains(callback)) {
                _onloads.push(callback);
                console.log('onload callback: '
                    + (callback.name ? callback.name : callback));
            }
        },
 
        get: function() {
            console.log('onload');
            return _onload;
        }
    });

if ('function' == typeof old_onload)
    onload = old_onload;
onload = convert;
//window.addEventListener('load', convert);
document.head.onload = function() {
    console.log(typeof onload);
    if ('function' == typeof onload) {
        window._onload = onload;
        window.onload = function(event) {
            convert();
            window._onload(event);
        }
    }
    else
        window.onload = convert;
 
}*/
 
//setTimeout(convert, 2000);
//document.body.childNodes.item(0).onload = convert;