function changeIframeDisplay(type) {
	
	switch(type) {
		case "graph":
			url = "http://bosch.informatik.rwth-aachen.de:5080/AERCS/EventList.jsp?series=db/conf/icwl&item=4";
		break;
		case "map":
			url = "http://bosch.informatik.rwth-aachen.de:5080/AERCS/GoogleMapViewer.jsp?id=807";
		break;
		case "chart":
			url = "http://bosch.informatik.rwth-aachen.de:5080/AERCS/SeriesChartViewer.jsp?id=807";
		break;
	}
	document.getElementById("aercs_display").style.display = "block";
	
	document.getElementById("aercs_display").innerHTML = '<iframe class="centered" src="' + url + '" name="AERCS_Charts"><p>Unfortunately your browser cannot display iframes. To view the content, please click on <a href="' + url + '">this link</a>.</p></iframe>';
}

function closeIframeDisplay() {
	document.getElementById("aercs_display").style.display = "none";	
}