// Popup
	function openPopup(address, name, width) {
		var windowHeight = screen.height;
		var windowWidth = screen.width;
		var leftOffset = (windowWidth - width) / 2;
		commonPopup = window.open(address, "popup", "toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=yes,resizable=yes,width=" + width + ",height=" + windowHeight + ",left=" + leftOffset);
		commonPopup.focus();
	}	
	
	
	// Einfügen von BB-Code
	function insert( aTag, eTag) {
		var input = document.forms['gb-formular'].elements['text'];
		input.focus();
		/* für Internet Explorer */
		if(typeof document.selection != 'undefined') {
			/* Einfügen des Formatierungscodes */
			var range = document.selection.createRange();
			var insText = range.text;
			range.text = aTag + insText + eTag;
			/* Anpassen der Cursorposition */
			range = document.selection.createRange();
			if (insText.length == 0) {
				range.move('character', -eTag.length);
			} else {
				range.moveStart('character', aTag.length + insText.length + eTag.length);      
			}
			range.select();
		}
		/* für neuere auf Gecko basierende Browser */
		else if(typeof input.selectionStart != 'undefined') {
			/* Einfügen des Formatierungscodes */
			var start = input.selectionStart;
			var end = input.selectionEnd;
			var insText = input.value.substring(start, end);
			input.value = input.value.substr(0, start) + aTag + insText + eTag + input.value.substr(end);
			/* Anpassen der Cursorposition */
			var pos;
			if (insText.length == 0) {
				pos = start + aTag.length;
			} else {
				pos = start + aTag.length + insText.length + eTag.length;
			}
			input.selectionStart = pos;
			input.selectionEnd = pos;
		}
		/* für die übrigen Browser */
		else {
			/* Abfrage der Einfügeposition */
			var pos;
			var re = new RegExp('^[0-9]{0,3}$');
			while(!re.test(pos)) {
				pos = prompt("Einfügen an Position (0.." + input.value.length + "):", "0");
			}
			if(pos > input.value.length) {
				pos = input.value.length;
			}
			/* Einfügen des Formatierungscodes */
			var insText = prompt("Bitte geben Sie den zu formatierenden Text ein:");
			input.value = input.value.substr(0, pos) + aTag + insText + eTag + input.value.substr(pos);
		}
	}