.transblack{
	background-image: url('http://www.wdr5.de/nav/trans/schwarz20.png');
}
.transwhite{
	background-image: url('http://www.wdr5.de/nav/trans/schwarz10.png');
}
.transkal{
	background-image: url('http://www.wdr5.de/nav/trans/weiss25.png');
}
.tabbg{
background-image: url('http://www.wdr5.de/nav/fuenf.gif');
background-repeat: no-repeat;
}