//rollover-funktion

	if (document.images) {
		button01 = new Image
		button02 = new Image
		button03 = new Image
		button04 = new Image
		button05 = new Image
		button06 = new Image
		button07 = new Image
		button08 = new Image
		button09 = new Image
		button10 = new Image
		button11 = new Image
		button12 = new Image
		
	
		button01.src = 'images/bt_plot.gif'
		button02.src = 'images/bt_plot_ro.gif'
		button03.src = 'images/bt_digitaldruck.gif'
		button04.src = 'images/bt_digitaldruck_ro.gif'
		button05.src = 'images/bt_kopie.gif'
		button06.src = 'images/bt_kopie_ro.gif'
		button07.src = 'images/bt_service.gif'
		button08.src = 'images/bt_service_ro.gif'
		button09.src = 'images/bt_info.gif'
		button10.src = 'images/bt_info_ro.gif'
		button11.src = 'images/bt_referenzen.gif'
		button12.src = 'images/bt_referenzen_ro.gif'
	 }
	 
//öffnen der popups

	 function popupoeffnen(meineSeite,meinName,w,h,scroll){
	LeftPosition = (screen.width) ? (screen.width-w)/2 : 0;
	TopPosition = (screen.height) ? (screen.height-h)/2 : 0;
	settings = 
	'height='+h+',width='+w+',top='+TopPosition+',left='+LeftPosition+',resizable = no'
	Fenster = window.open(meineSeite,meinName,settings)
	}