function FWidth() { if (window.innerWidth) { return window.innerWidth; } else { if (window.document.documentElement && window.document.documentElement.clientWidth) { return window.document.documentElement.clientWidth; } return window.document.body.offsetWidth; } }
function FHeight() { if (window.innerHeight) { return window.innerHeight; } else { if (window.document.documentElement && window.document.documentElement.clientHeight) { return window.document.documentElement.clientHeight; } return window.document.body.offsetHeight; } }