var mailregex = /^[0-9a-zA-Z][0-9a-zA-Z\._-]*@([0-9a-zA-Z-_]+\.)+([a-z]{2,6})$/;
var dateregex = /^[0-9]{1,2}\.[0-9]{1,2}\.[0-9]{4}$/;
var numregex = /^[0-9]+$/;

function popupNormal(sUrl, sWidth, sHeight)
{
	var popup;

	popup = window.open(sUrl, 'PressRelease','toolbar=yes,location=no,directories=no,status=no,menubar=no,scrollbars=yes,screenX=10,screenY=10,resizable=yes,width=' + sWidth + ',height=' + sHeight, true);
	if(navigator.appName.indexOf('Netscape') != -1)
		popup.focus();
}

function popupHelp(sUrl, sWidth, sHeight)
{
	var popup;

	popup = window.open(sUrl, 'PressRelease','toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=auto,screenX=10,screenY=10,resizable=yes,width=' + sWidth + ',height=' + sHeight, true);
	if(navigator.appName.indexOf('Netscape') != -1)
		popup.focus();
}

function popupPicture(sUrl, sWidth, sHeight)
{
	var popup;
	//var sWidth=sWidth+10;
	//var sHeight=sHeight+10;
	
	popup = window.open(sUrl, 'PictureViewer','toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=no,screenX=10,screenY=10,resizable=yes,width=' + sWidth + ',height=' + sHeight, true);
	if(navigator.appName.indexOf('Netscape') != -1)
		popup.focus();
}

function cms_login() {
	window.open("/cms/login.php", "login", "width=450,height=300,resizable=yes");
}

function konsole(konsurl,konswidth,konsheight) {
	kons = window.open(konsurl, "zoom", "width="+konswidth+",height="+konsheight+"location=no,menubar=no,scrollbars=no,status=no,toolbar=no,resizable=no'");
	if(kons.focus)kons.focus();
}

function mifi(missifi) {
	if (missifi!="") {
		alert("Bitte folgende Felder noch vollständig ausfüllen:\n " + missifi);
		return false;
	}
	return true;
}

function check_mailthispage() {
	var missing_fields="";
	if (!mailregex.test(document.forms[0].email_recipient.value)) missing_fields+="\n- Emailadresse Empfänger";
	if (!mailregex.test(document.forms[0].email_sender.value)) 	missing_fields+="\n- Emailadresse Absender";
	return mifi(missing_fields);
}

function check_eventvorschlag() {
	var missing_fields="";
	if (document.forms[0].event_title.value=="") 	missing_fields+="\n- Event Titel";
	if (document.forms[0].desc.value=="") 	missing_fields+="\n- Event Beschreibung";
	if (document.forms[0].event_type.options[document.forms[0].event_type.selectedIndex].value=="none") missing_fields+="\n- Event Typ";
	if (document.forms[0].organizer.value=="") 	missing_fields+="\n- Veranstalter Name/Firma";
	if (document.forms[0].address.value=="") 	missing_fields+="\n- Adresse";
	if (document.forms[0].phone.value=="") 	missing_fields+="\n- Telefon";
	return mifi(missing_fields);
}

function check_bnl() {
	var missing_fields="";
	if (document.forms[0].name.value=="") 	missing_fields+="\n- Name";
	if (document.forms[0].betrieb.value=="") 	missing_fields+="\n- Betrieb";
	if (document.forms[0].adresse.value=="") 	missing_fields+="\n- Adresse";
	if (!mailregex.test(document.forms[0].email.value)) 	missing_fields+="\n- eMail";
	return mifi(missing_fields);
}

function check_kundenanmeldung() {
	var missing_fields="";
	if (document.forms[0].name.value=="")		missing_fields+="\n- Name";
	if (document.forms[0].betrieb.value=="")	missing_fields+="\n- Betrieb";
	if (document.forms[0].adresse.value=="")	missing_fields+="\n- Adresse";
	if (!mailregex.test(document.forms[0].email.value)) 	missing_fields+="\n- eMail";
	if (document.forms[0].phone.value=="")		missing_fields+="\n- Telefon";
	if (document.forms[0].username.value=="")	missing_fields+="\n- gew. Benutzername";
	if (document.forms[0].password.value=="")	missing_fields+="\n- gew. Passwort";
	if (document.forms[0].password_conf.value=="")	missing_fields+="\n- Passwortbestätigung";
	if (document.forms[0].password.value != document.forms[0].password_conf.value) missing_fields+="\n- Passwort und Passwortbestätigung müssen identisch sein!";
	if (document.forms[0].password.value == document.forms[0].username.value) missing_fields+="\n- Benutzername und Passwort dürfen aus Sicherheitsgründen nicht identisch sein!";
	return mifi(missing_fields);
}

function printpage() {
	if (window.print)
		window.print();
	else
		alert("Leider unterstützt Ihr Browser diese Funktion nicht. Bitte aktivieren Sie die Druckfunktion Ihres Browsers manuell.");
}







/**
*
*  Base64 encode / decode
*  http://www.webtoolkit.info/
*
**/

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;
	}
}

// löscht eine Default-Message aus einem Texteingabefeld
function clearField(fieldId, defaultMessage) {
	if (document.getElementById(fieldId).innerHTML == defaultMessage) {
		document.getElementById(fieldId).innerHTML = '';
	}
}