function loadLayer(whichlayer){
	if($('#layer').length <= 0){
		$('<div id="layer"></div>').appendTo($('body')).css({
			position: 		'absolute',
			top:			'-100%',
			left:			0,
			height:			'100%',
			width:			'100%',
			'text-align':	'center',		
			display: 		'block',
			'z-index':		11000
		});
/*
		if (whichlayer == "northcon") {
			$('<div style="position:relative; top:75px;"><a href="#" onclick="$(\'#layer\').remove();"><img src="/images/layer_schliessen_northcon.jpg" alt="schliessen" title="schliessen" border="0"></a><br><a href="http://www.northcon.de/ausstellung.htm" title="" target="_blank"><img src="/images/layer_northcon_2011.jpg" alt="" border="0"></a></div>').appendTo($('#layer'));
		} else {
			$('<div style="position:relative; top:75px;"><a href="#" onclick="$(\'#layer\').remove();"><img src="/images/layer_schliessen.jpg" alt="schliessen" title="schliessen" border="0"></a><br><a href="http://www.facebook.com/pccooling.de?sk=app_249320545129603" title="" target="_blank"><img src="/images/fcc_layer.jpg" alt="" border="0"></a></div>').appendTo($('#layer'));
		}
*/		
		$('<div style="position:relative; top:75px;"><a href="#" onclick="$(\'#layer\').remove();"><img src="/images/layer_schliessen.jpg" alt="schliessen" title="schliessen" border="0"></a><br><a href="http://www.pc-cooling.de/product_info.php?model=100700536" title="" target="_blank"><img src="/images/winter_layer_klassenprimus.jpg" alt="" border="0"></a></div>').appendTo($('#layer'));
		$('#layer').click(function(event){
			target = $(event.target);
			if(!target.is('div')) return true;
			$('#layer').animate({top:'-100%'}, 'slow', function(){ $('#layer').remove(); });		
			return false;
		});

		$('#layer').animate({top:'0'}, 'slow');
	}
	return false;
}