function langalert(lang) {
	if ( lang == 'en') {
		alert('This website is under construction!\nPlease visit later!');
	}
	if ( lang == 'de') {
		alert('An dieser Website wird gerade gebaut.\nBitte schauen Sie später noch einmal vorbei.');
	}
}

function nlOpen( p ) {

    if ( p ) { document.getElementById(p).style.visibility = 'hidden' }

    var o = document.getElementById('overlayDiv');

    o.style.background = "url(/gfx/bg_overlaydiv.png)";
    o.style.display = 'block';

}

function nlClose( p ) {

    var o = document.getElementById('overlayDiv');

    o.style.display = 'none';

    if ( p ) { document.getElementById(p).style.visibility = 'visible' }

}

function innerDimension() {
	var x,y;

	// all except Explorer
	if (self.innerHeight)
	{
		x = self.innerWidth;
		y = self.innerHeight;

	// Explorer 6 Strict Mode
	} else if (document.documentElement && document.documentElement.clientHeight) {
		x = document.documentElement.clientWidth;
		y = document.documentElement.clientHeight;

	// other Explorers
	} else if (document.body) {
		x = document.body.clientWidth;
		y = document.body.clientHeight;
	}

	return {width: x, height: y};
}

function offsetDimension() {
	var x,y;

	// all except Explorer
	if (self.pageYOffset)
	{
		x = self.pageXOffset;
		y = self.pageYOffset;

	// Explorer 6 Strict
	} else if (document.documentElement && document.documentElement.scrollTop) {
		x = document.documentElement.scrollLeft;
		y = document.documentElement.scrollTop;

	// all other Explorers
	} else if (document.body) {
		x = document.body.scrollLeft;
		y = document.body.scrollTop;
	}

	return {x: x, y: y}
}