function changeImage(imageId, action, section) {

	images = new Array();
	
	images["main"] = new Array();
	images["main"]["over"] = "Images/nav_list_over.gif";
	images["main"]["out"] = "Images/nav_list.gif";
	
	images["sub"] = new Array();
	images["sub"]["over"] = "Images/untermenue_active.gif";
	images["sub"]["out"] = "Images/untermenue.gif";	
	
	
	document.getElementById(imageId).src = images[section][action];


}