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natlownes/gist:144832

Created July 10, 2009 21:32
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gistfile1.js
// ==UserScript==
// @name Swoopo Ripoff Calculator
// @namespace http://*.swoopo.com
// @include http://www.swoopo.com/
// ==/UserScript==
var spans = document.getElementsByTagName("span");
var priceRe = /^price_index_page_.*/;
var earnRe = /^earn_price_index_page_.*/
setInterval(
function() {
for (i = 0; i < spans.length; i++) {
if(spans[i].getAttribute('id') != null && priceRe.exec(spans[i].getAttribute('id'))) {
priceSpan = document.getElementById(spans[i].getAttribute('id'));
earnSpan = document.getElementById('earn_' + spans[i].getAttribute('id'));
if (earnSpan != null) {
earnSpan.parentNode.removeChild(earnSpan);
}
//priceSpan.addEventListener('onchange', updateEarnings, false);
priceString = priceSpan.innerHTML;
price = parseFloat(priceString.substring(1));
earnings = (price/0.12) * .60;
roundedEarnings = Math.round(earnings*Math.pow(10,3))/Math.pow(10,3);
//console.log("price: " + priceString + " earnings: $" + roundedEarnings);
earningsSpan = document.createElement('span');
earningsSpan.setAttribute('class', 'prd_pricetag');
earningsSpan.setAttribute('id', 'earn_' + spans[i].getAttribute('id'));
br = document.createElement('br');
earningsText = document.createTextNode("$" + roundedEarnings);
earningsSpan.appendChild(br);
earningsSpan.appendChild(earningsText);
//priceSpan.parentNode.appendChild(br);
priceSpan.parentNode.appendChild(earningsSpan);
}
}
},
5000);
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