function seuratstart(){
	if (document.body){
		document.body.background = 'images/seurat_bg.gif';
	}
	setTimeout("opentxt()",1000);
}

function opentxt() {
	document.getElementById('statement').style.visibility = 'visible';
	document.getElementById('mainnav').style.visibility = 'visible';
	document.getElementById('content').style.visibility = 'visible';
	setTimeout("openbild()",1000);
}
function openbild() {
	document.getElementById('bild').style.visibility = 'visible';
}