var active_subcontent=0;
var active_staysubcontent=0;

//************** bildwechsel hauptmenue

function activate_menue(menue) {
	if ((menue!=active_subcontent) && (menue!=active_staysubcontent))
		document.images[menue].src = "images/navi/"+menue+"_aktiv.gif";
}

function deactivate_menue(menue) {
	if ((menue!=active_subcontent) && (menue!=active_staysubcontent))
		document.images[menue].src = "images/navi/"+menue+".gif";
}


function store_staymenue(staymenue) {
	if (staymenue!=active_subcontent) {
		if (active_staysubcontent)
			document.images[active_staysubcontent].src = "images/navi/"+active_staysubcontent+"_aktiv.gif";
			document.images[staymenue].src = "images/navi/"+staymenue+"_aktiv.gif";
			active_staysubcontent=staymenue;
		}
}





function change_img(img,img_src,li_name,zae) {

		document.images[img].src = img_src;
		
		var i;
		for(i=1;i <= zae;i++){
			document.getElementById("li"+i).className = "inactive";
		}
		
		document.getElementById(li_name).className = "active";
}