//Testfunktionen
function top1a () {
	var t1 = document.getElementById('top1').style;
	var t2 = document.getElementById('top1id');
	if(t2.checked == true)
		t1.top = '20px';
	else
		t1.top = '70px';
}

function top3a () {
	var top3 = document.getElementById('top3').style;
	var t4 = document.getElementById('top3id');

	if(t4.checked == true) {
		top3.top = '85px';
		top3.backgroundImage = 'none';
		top3.borderBottom = '1px solid #000';
		top3.height = '50px';
		top3.top = '85px';
	}
	else {
		top3.top = '85px';
		top3.backgroundImage = 'url(i/hintergrund_oben.png)';
		top3.borderBottom = 'none';
		top3.height = '28px';
		top3.top = '107px';
	}
}

function contenta () {
	var c1 = document.getElementById('content').style;
	var c2 = document.getElementById('contentid');
	if(c2.checked == true) {
		c1.backgroundColor = '#F6F5E8';
		c1.padding = '4px';
	}
	else {
		c1.backgroundColor = 'transparent';
		c1.padding = '0px';
		c1.paddingBottom = '4px';
	}
}

function fuss2a () {
	var c2 = document.getElementById('fuss2id');
	if(c2.checked == true)
		document.images['fuss2'].src = 'i/bhsLogos2.gif';
	else
		document.images['fuss2'].src = 'i/bhsLogos.gif';
}

function hideId(idelement,showhide) {
	if(document.getElementById)
		document.getElementById(idelement).style.display = showhide;
}

function fontsize () {
	var fs = document.getElementById('size').value;

	if(fs >= 80 && fs <= 300 && !fs.match(/[A-Za-z]/)) {
		document.getElementById('bodyid').style.fontSize = fs+'%';
	}
	else
		alert('Es kann eine Zahl zwischen 80 und 300 angegeben werden');
}




//Menüfunktionen

function hideMenu(idelement) {
	var h,n,i;


	for(i=1;;i++) {
		h = document.getElementById('navi2_'+i);
		n = document.getElementById('navi1_'+i);
		if(i == idelement && h && n) {
			h.style.visibility = 'visible';
		}
		else
		if(h && n) {
			h.style.visibility = 'hidden';
		}
		else {
			break;
		}
	}
}

function hide_all_navi2() {
	var h,n,i;
	for(i=1;;i++) {
		h = document.getElementById('navi2_'+i);
		n = document.getElementById('navi1_'+i);
		if(h && n) {
			h.style.visibility = 'hidden';
		}
		else
			break;
	}
}