ul#leftnav li.page1 span{
 background-image: url(../images/menu1_en.jpg);
 background-repeat: no-repeat;
}

ul#leftnav li.page2 span{
 background-image: url(../images/menu2_en.jpg);
 background-repeat: no-repeat;
}

ul#leftnav li.page3 span{
 background-image: url(../images/menu3_en.jpg);
 background-repeat: no-repeat;
}

ul#leftnav li.page4 span{
 background-image: url(../images/menu4_en.jpg);
 background-repeat: no-repeat;
}

ul#leftnav li.page1act span{
 background-image: url(../images/menu1act_en.jpg);
 background-repeat: no-repeat;
}

ul#leftnav li.page2act span{
 background-image: url(../images/menu2act_en.jpg);
 background-repeat: no-repeat;
}

ul#leftnav li.page3act span{
 background-image: url(../images/menu3act_en.jpg);
 background-repeat: no-repeat;
}

ul#leftnav li.page4act span{
 background-image: url(../images/menu4act_en.jpg);
 background-repeat: no-repeat;
}