1 go to -> https://chrome.google.com/webstore/detail/tampermonkey/dhdgffkkebhmkfjojejmpbldmpobfkfo?hl=en
2 add Tampermonkey to chrome 
3 Tampermonkey -> click on add new script
4 Paste code provide below
5 save script
6 Reload tab containing game 


// ==UserScript==
// @name       http://s1.mlgame.co.uk/
// @namespace  http://use.i.E.your.homepage/
// @version    0.1
// @description  enter something useful
// @match      http://s1.mlgame.co.uk/*
// @require       http://ajax.googleapis.com/ajax/libs/jquery/1.8.2/jquery.min.js
// @copyright  2012+, You
// ==/UserScript==


function addGlobalStyle(css) {
    var head, style;
    head = document.getElementsByTagName('head')[0];
    if (!head) { return; }
    style = document.createElement('style');
    style.type = 'text/css';
    style.innerHTML = css;
    head.appendChild(style);
}

addGlobalStyle('#wrapper{width:100%;height:100%;border:1px solid black;overflow:auto}#first{float:left;width:48%;border:1px solid red}#second{border:1px solid green;margin:0 0 0 50%}');


var calc = 
'<div id="wrapper"> ' 
    + '<div id="first">'
    + '   <iframe src="http://en.mylandsgame.info/calc/" style="border:0px #FFFFFF none;" name="iFrame1" scrolling="yes" frameborder="0"  height="100%" width="99%"> '
    + '   </iframe> '
    + '</div> '
    + '<div id="second">'
    + '<div>Unit Calculator'
    + '<iframe src="http://en.mylandsgame.info/calc7/calc3.html" style="border:0px #FFFFFF none;" name="iFrame2" scrolling="yes"  height="50%"  width="99%"></iframe></div>'
    + '<div>Building Destruction'
    + '<iframe src="http://en.mylandsgame.info/calc7/calc1.html" style="border:0px #FFFFFF none;" name="iFrame3" scrolling="yes"  height="50%"  width="99%"></iframe></div>'
    + '   </div> </div>';
$('body').append(calc);