Shows the screen dimensions next to the diagonal size
// ==UserScript==
// @name Newegg Screen Dimensions
// @namespace http://mailerdaemon.home.comcast.net
// @description Shows the screen dimensions next to the diagonal size
// @include http://www.newegg.com/Product/Product.aspx?*
// @version 0.1
// ==/UserScript==
size = $X("//div[@id='pcraSpecs']//td[position()=1 and text()='Screen Size']/following-sibling::td/text()");
dim = $X("//div[@id='pcraSpecs']//td[position()=1 and text()='Maximum Resolution']/following-sibling::td/text()");
if(size && dim)
{
result = /[\s]*([\d]+)[\s]+x[\s]+([\d]+)[\s]*/.exec(dim.data);
x = Number(result[1]);
y = Number(result[2]);
d = Number(size.data.slice(0, -1));
ps = d / Math.sqrt(x * x + y * y);
size.data = size.data + " ( " + String(ps * x).slice(0,5) +'" x ' + String(ps * y).slice(0,5) + '" )';
pp = $X("//div[@id='pcraSpecs']//td[position()=1 and text()='Pixel Pitch']/following-sibling::td/text()");
if(pp)
pp.data += ' [' + String(ps / 0.0393700787402).substring(0, 5) + 'mm]';
//else
size.data += ' at ' + String(ps / 0.0393700787402).substring(0, 5) + 'mm';
}
function $X(_xpath, node){return document.evaluate(_xpath, node?node:document, null, XPathResult.ORDERED_NODE_SNAPSHOT_TYPE, null).snapshotItem(0);}
/*
function $Y(_xpath, node){return document.evaluate(_xpath, node?node:document, null, XPathResult.ORDERED_NODE_SNAPSHOT_TYPE, null);}
function $Z(_xpath, func, node, payload){
var res = document.evaluate(_xpath, node?node:document, null, XPathResult.ORDERED_NODE_SNAPSHOT_TYPE, null);
var i, j;
for (i = j = 0; link = res.snapshotItem(i); ++i)
j += func(link, i, payload);
return j;
}
function insertAfter(insert, after){return after.parentNode.insertBefore(insert, after.nextSibling);}
function insertBefore(insert, before){return before.parentNode.insertBefore(insert, before);}
*/