function getwidth() {
    if (document.documentElement && document.documentElement.clientWidth) {
        width = document.documentElement.clientWidth;
		height = document.documentElement.clientHeight;
	}
    else if (document.body) {
        width = document.body.clientWidth;
		height = document.body.clientHeight;
	}
    else {
        width = window.innerWidth;
		height = window.innerHeight;
	}
	
	return(width);
}


function getheight() {
    if (document.documentElement && document.documentElement.clientWidth) {
        width = document.documentElement.clientWidth;
		height = document.documentElement.clientHeight;
	}
    else if (document.body) {
        width = document.body.clientWidth;
		height = document.body.clientHeight;
	}
    else {
        width = window.innerWidth;
		height = window.innerHeight;
	}
	
	return(height);
}