#produkteButton span, #produkteButton:visited span { background-image:url(../img/menu1.gif); }
#downloadButton span, #downloadButton:visited span { background-image:url(../img/menu2.gif); }
#hilfeButton span, #hilfeButton:visited span { background-image:url(../img/menu3.gif); }
#firmaButton span, #firmaButton:visited span { background-image:url(../img/menu4.gif); }