.index_bg {
	BACKGROUND-ATTACHMENT: fixed; BACKGROUND-IMAGE: url(../images/verlauf_1024x250.gif); BACKGROUND-REPEAT: no-repeat
}
.main_bg {
	BACKGROUND-ATTACHMENT: fixed; BACKGROUND-IMAGE: url(../images/main_bg.jpg); BACKGROUND-REPEAT: no-repeat
}
.nav_bg {
	BACKGROUND-ATTACHMENT: fixed; BACKGROUND-IMAGE: url(../images/jumper_nav.gif); BACKGROUND-REPEAT: no-repeat
}