var theWidth, theHeight;
// Window dimensions:
if (window.innerWidth) {
theWidth=window.innerWidth;
}
else if (document.documentElement && document.documentElement.clientWidth) {
theWidth=document.documentElement.clientWidth;
}
else if (document.body) {
theWidth=document.body.clientWidth;
}
if (window.innerHeight) {
theHeight=window.innerHeight;
}
else if (document.documentElement && document.documentElement.clientHeight) {
theHeight=document.documentElement.clientHeight;
}
else if (document.body) {
theHeight=document.body.clientHeight;
}