function windowWidth() {

	var result = 630;

	if ( parseInt( navigator.appVersion ) > 3 ) {
		if ( navigator.appName=="Netscape" ) {
			result = window.innerWidth;
		}
		if ( navigator.appName.indexOf( "Microsoft" ) != -1 ) {
			result = document.body.offsetWidth;
		}
		if ( navigator.appName.indexOf( "Opera" ) != -1 ) {
			result = window.innerWidth;
		}
	}
	
	return result;
	
}

function windowHeight() {

	var result = 460;

	if ( parseInt( navigator.appVersion ) > 3 ) {
		if ( navigator.appName == "Netscape" ) {
			result = window.innerHeight;
		}
		if ( navigator.appName.indexOf( "Microsoft" ) != -1 ) {
			result = document.body.offsetHeight;
		}
		if ( navigator.appName.indexOf( "Opera" ) != -1 ) {
			result = window.innerHeight;
		}
	}
	
	return result;
	
}