// Funktion fuer ein zentriertes Popup-Fenster
function centWin(url,winName,w,h,feat) {
	sw = screen.width;
	sh = screen.height;
	win = null;

	LeftPosition = (screen.width) ? (screen.width-w)/2 : 0;
	TopPosition = (screen.height) ? (screen.height-h)/2 : 0;

	settings = 'height='+h+',width='+w+',top='+TopPosition+',left='+LeftPosition;
	settings = feat + ',' + settings;

	win = window.open(url,winName,settings);

	if(win.window.focus) {
		win.window.focus();
		}
	}

// Funktion zum Wechseln der Tabellen-Farbe
function farbWechsel(dieReihe, dieFarbe) {
	dieReihe.style.backgroundColor = dieFarbe;
	}

// Funktion zum aufklappen eines DIV-Tags
function openDiv(id) {
	if( document.layers ) {
		if(document.layers['box' + id].style.display == 'none') {
			document.layers['box' + id].style.display = '';
			}
		else {
			document.layers['box' + id].style.display = 'none';
			}
		}

	else if( document.all ) {
		if(document.all['box' + id].style.display == 'none') {
			document.all['box' + id].style.display = '';
			}
		else {
			document.all['box' + id].style.display = 'none';
			}
		}

	else if( document.getElementById ) {
		if(document.getElementById('box' + id).style.display == 'none') {
			document.getElementById('box' + id).style.display = '';
			}
		else {
			document.getElementById('box' + id).style.display = 'none';
			}
		}
	}

// Funktion zum News aufklappen und Bildwechseln
function mehrNews(id) {
	if( document.layers ) {
		if(document.layers['news' + id].style.display == 'none') {
			document.layers['news' + id].style.display = '';
			document.layers['newsImg' + id].src = '../images/minus.gif';
			}
		else {
			document.layers['news' + id].style.display = 'none';
			document.layers['newsImg' + id].src = '../images/plus.gif';
			}
		}

	else if( document.all ) {
		if(document.all['news' + id].style.display == 'none') {
			document.all['news' + id].style.display = '';
			document.all['newsImg' + id].src = '../images/minus.gif';
			}
		else {

			document.all['news' + id].style.display = 'none';
			document.all['newsImg' + id].src = '../images/plus.gif';
			}
		}

	else if( document.getElementById ) {
		if(document.getElementById('news' + id).style.display == 'none') {
			document.getElementById('news' + id).style.display = '';
			document.getElementById('newsLink' + id).innerText = 'weniger...';
			document.getElementById('newsImg' + id).src = '../images/minus.gif';
			}
		else {
			document.getElementById('news' + id).style.display = 'none';
			document.getElementById('newsLink' + id).innerText = 'mehr...';
			document.getElementById('newsImg' + id).src = '../images/plus.gif';
			}
		}
	}

// Funktion zum Bestaetigen eines Loeschvorgangs
function checkdel() {
	var check = confirm("Soll der Loeschvorgang wirklich durchgefuehrt werden?");
	if(check) return true;
	else return false;
	}