var nix;
var old = 1;

//document.getElementById('backimg1').innerHTML=tp;

function show_page(page) {
	hidenews('21','');
	hidenews('20','');
	if(old!=page)  {

	//	document.getElementById('backimg'+page).style.visibility = "visible";

		document.getElementById('nav'+page).style.visibility = "hidden";
	
		document.getElementById('cont'+page).style.visibility = "visible";
		document.getElementById('subnav').style.visibility = "hidden";
		
	//	document.getElementById('backimg'+old).style.visibility = "hidden";
	if(old=="18")  {
		document.getElementById('nav11').style.visibility = "visible";
	} else {
		if(old!="13" && old!="14" && old!="15" && old!="16" )  {
			document.getElementById('nav'+old).style.visibility = "visible";
		} else {
			document.getElementById('nav8').style.visibility = "visible";
		}
	}
			document.getElementById('cont'+old).style.visibility = "hidden";
	if(old=="18")  {
		old = "11";
	}
		myfade(page,old);
	}
	
	old = page;
	
}

function show_cont(page) {
		hidenews();
	if(old!=page)  {

		document.getElementById('nav8').style.visibility = "hidden";
		document.getElementById('cont'+page).style.visibility = "visible";
		document.getElementById('subnav').style.visibility = "visible";
		
		if(old=="18")  {
			document.getElementById('nav11').style.visibility = "hidden";
		}  else {
		
			if(old!="13" && old!="14" && old!="15" && old!="16" )  {
				document.getElementById('nav'+old).style.visibility = "visible";
			}
		}
		if(old=="13" || old=="14" || old=="15" || old=="16" )  {
			document.getElementById('sub'+old).style.color = "#b98000";
		}
		document.getElementById('sub'+page).style.color = "#e3d1af";
		if(old=="18")  {
			document.getElementById('cont11').style.visibility = "hidden";
		} else {
		document.getElementById('cont'+old).style.visibility = "hidden";
		}
		myfade(page,old);
	}
	
	old = page;
	
}

function subover(page) {
		if(old!=page)  {
		document.getElementById('sub'+page).style.color = "#e3d1af";
		}
}
function subout(page) {
		if(old!=page)  {
		document.getElementById('sub'+page).style.color = "#b98000";
		}

}

function show_abg()  {
	document.getElementById('cont11').style.visibility = "hidden";
	document.getElementById('cont18').style.visibility = "visible";
	old = "18";
}

function shownews(welche,wo)  {
	if(wo!="")  {
		if(document.getElementById('cont'+wo)) {
			document.getElementById('cont'+wo).style.visibility = "hidden";
		}
	}
	if(document.getElementById('cont'+welche)) {
		document.getElementById('cont' +welche).style.visibility = "visible";
	}
}

function hidenews(welche,wo)  {
	if(wo!="")  {
		if(document.getElementById('cont'+wo)) {
			document.getElementById('cont'+wo).style.visibility = "visible";
		}
	}
	if(document.getElementById('cont'+welche)) {
		document.getElementById('cont'+welche).style.visibility = "hidden";
	}
}

function mittig() {

	var hoehe = document.documentElement.clientHeight;


	hoehe -= 788;
	

	oben = hoehe/2;
	
	if(oben<=0)  {
		oben = 0;
	}

	document.getElementById('mainpage').style.top = oben +"px";

}