function $$(id) { return document.getElementById(id); }

	
	function switch_visibility(className, strings) {
		if(!strings.length) var strings = ['mehr schauen', 'weniger schauen'];
		var elements = ['div', 'th', 'td'];
		var switcher = $$('switch_visibility')
		for(e in elements) {
			ee = elements[e];
			var divs = document.getElementsByTagName(ee);
			var style, text;
			
			for(var i = 0; i < divs.length; i++) {
				var classRegex = new RegExp("\\b" + className + "\\b");
				if(divs[i].className.match(classRegex)) {
					if(divs[i].style.display) {
						style = '';
						text = strings[0];
					} else {
						style = (ee == 'td' || ee == 'th' ? 'table-cell' : 'block');
						text = strings[1];
					}
					divs[i].style.display = style;
					if(switcher) switcher.innerHTML = text;
				}
			}
		}
	}

  function ajax(url, method, data, succ, fail) {
  	method = method.toUpperCase();
	if(method == 'GET' || method == 'POST') {
		if(window.ActiveXObject) httpRequest = new ActiveXObject("Microsoft.XMLHTTP");
		else httpRequest = new XMLHttpRequest();

		httpRequest.onreadystatechange = function() {
			if(httpRequest.readyState == 4) {
				if(httpRequest.status == 200) succ(httpRequest.responseText);
				else fail(httpRequest.responseText);
			}
		};

		if(data) {
			params = new Array();
			for(paramname in data) params.push(escape(paramname) + '=' + escape(data[paramname]));
			params = params.join('&');
		}
		else params = null;

		httpRequest.open(method, url, true);
		if(method == 'POST') {
			httpRequest.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
			httpRequest.setRequestHeader("Content-length", params.length);
			httpRequest.setRequestHeader("Connection", "close");
		}
		httpRequest.send(params);
	}
  }
  

var Base64 = {
 
	// private property
	_keyStr : "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=",
 
	// public method for encoding
	encode : function (input) {
		var output = "";
		var chr1, chr2, chr3, enc1, enc2, enc3, enc4;
		var i = 0;
 
		input = Base64._utf8_encode(input);
 
		while (i < input.length) {
 
			chr1 = input.charCodeAt(i++);
			chr2 = input.charCodeAt(i++);
			chr3 = input.charCodeAt(i++);
 
			enc1 = chr1 >> 2;
			enc2 = ((chr1 & 3) << 4) | (chr2 >> 4);
			enc3 = ((chr2 & 15) << 2) | (chr3 >> 6);
			enc4 = chr3 & 63;
 
			if (isNaN(chr2)) {
				enc3 = enc4 = 64;
			} else if (isNaN(chr3)) {
				enc4 = 64;
			}
 
			output = output +
			this._keyStr.charAt(enc1) + this._keyStr.charAt(enc2) +
			this._keyStr.charAt(enc3) + this._keyStr.charAt(enc4);
 
		}
 
		return output;
	},
 
	// public method for decoding
	decode : function (input) {
		var output = "";
		var chr1, chr2, chr3;
		var enc1, enc2, enc3, enc4;
		var i = 0;
 
		input = input.replace(/[^A-Za-z0-9\+\/\=]/g, "");
 
		while (i < input.length) {
 
			enc1 = this._keyStr.indexOf(input.charAt(i++));
			enc2 = this._keyStr.indexOf(input.charAt(i++));
			enc3 = this._keyStr.indexOf(input.charAt(i++));
			enc4 = this._keyStr.indexOf(input.charAt(i++));
 
			chr1 = (enc1 << 2) | (enc2 >> 4);
			chr2 = ((enc2 & 15) << 4) | (enc3 >> 2);
			chr3 = ((enc3 & 3) << 6) | enc4;
 
			output = output + String.fromCharCode(chr1);
 
			if (enc3 != 64) {
				output = output + String.fromCharCode(chr2);
			}
			if (enc4 != 64) {
				output = output + String.fromCharCode(chr3);
			}
 
		}
 
		output = Base64._utf8_decode(output);
 
		return output;
 
	},
 
	// private method for UTF-8 encoding
	_utf8_encode : function (string) {
		string = string.replace(/\r\n/g,"\n");
		var utftext = "";
 
		for (var n = 0; n < string.length; n++) {
 
			var c = string.charCodeAt(n);
 
			if (c < 128) {
				utftext += String.fromCharCode(c);
			}
			else if((c > 127) && (c < 2048)) {
				utftext += String.fromCharCode((c >> 6) | 192);
				utftext += String.fromCharCode((c & 63) | 128);
			}
			else {
				utftext += String.fromCharCode((c >> 12) | 224);
				utftext += String.fromCharCode(((c >> 6) & 63) | 128);
				utftext += String.fromCharCode((c & 63) | 128);
			}
 
		}
 
		return utftext;
	},
 
	// private method for UTF-8 decoding
	_utf8_decode : function (utftext) {
		var string = "";
		var i = 0;
		var c = c1 = c2 = 0;
 
		while ( i < utftext.length ) {
 
			c = utftext.charCodeAt(i);
 
			if (c < 128) {
				string += String.fromCharCode(c);
				i++;
			}
			else if((c > 191) && (c < 224)) {
				c2 = utftext.charCodeAt(i+1);
				string += String.fromCharCode(((c & 31) << 6) | (c2 & 63));
				i += 2;
			}
			else {
				c2 = utftext.charCodeAt(i+1);
				c3 = utftext.charCodeAt(i+2);
				string += String.fromCharCode(((c & 15) << 12) | ((c2 & 63) << 6) | (c3 & 63));
				i += 3;
			}
 
		}
 
		return string;
	}
 
}

  function session_save(namespace, name, value) {
	var data = new Array();
	data["namespace"] = Base64.encode(namespace);
	data["name"] = Base64.encode(name);
	data["value"] = Base64.encode(value);
	data["token"] = "7f572d7e445346ffda0a87a587d8e9fd";
	ajax("http://www.lurs.at//session_save.php", "POST", data, null, null);
  }