if(document.all){

	previous_ovr = new Image();

	previous_ovr.src = "gfx/zurueck_ovr.gif";



	previous_akt = new Image();

	previous_akt.src = "gfx/zurueck_akt.gif";

	

	next_ovr = new Image();

	next_ovr.src = "gfx/weiter_ovr.gif";



	next_akt = new Image();

	next_akt.src = "gfx/weiter_akt.gif";

}



function showRight(){

	if(document.all){

		document.previous.src = previous_ovr.src;

	}

return;

}



function hideRight(){

	if(document.all){

		document.previous.src = previous_akt.src;

	}

return;

}



function showLeft(){

	if(document.all){

		document.next.src = next_ovr.src;

	}

return;

}



function hideLeft(){

	if(document.all){

		document.next.src = next_akt.src;

	}

return;

}