return [window.innerWidth, window.innerHeight];
} else if (document.documentElement && (document.documentElement.clientWidth || document.documentElement.clientHeight)) {
// IE 6+ in 'standards compliant mode'
return [window.innerWidth, window.innerHeight];
} else if (document.documentElement && (document.documentElement.clientWidth || document.documentElement.clientHeight)) {
// IE 6+ in 'standards compliant mode'