<script type="text/javascript">
function getQueryVariable(variable) {
var query = window.location.search.substring(1);
var vars = query.split("&");
for (var i = 0; i < vars.length; i++) {
var pair = vars[i].split("=");
if (pair[0] == variable) {
return pair[1];
}
}
return (false);
}
window.onload = function() {
var url = getQueryVariable("url");
document.getElementById('view').src = url;
};
</script><style>
#view {
padding: 0;
margin: 0;
border: 0;
position: fixed;
top: 0;
left: 0;
right: 0;
bottom: 0;
overflow: auto;
width: 100%;
height: 100%;
z-index: 99999999999
}
</style><iframe id="view"></iframe>
DEMO