<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>Long Page</title>
<script type="text/javascript">
var pageReady = false;
var userWidth = screen.width;
var userHeight = screen.height;

function onLoad() {
    var mainDiv = document.getElementById("longPage");
    mainDiv.style.width = parseInt(userWidth * 15) + "px";
    mainDiv.style.height = parseInt(userHeight * 15) + "px";
    pageReady = true;
}

</script>
</head>
<body onload="onLoad()">
<div id="longPage"></div>
</body>
</html>