function abobestellung(page)
{
	abownd		= window.open("abobestellung/"+page+".htm", "abobestellung", "width=500, height=550, status=no, toolbar=no, scrollbars=yes, resizable=yes");
}




function cts(target)
{
	ctswnd		= window.open(target, "cts", "width=825, height=625, dependent=true, menubar=no, resizable=yes, status=no, toolbar=no, scrollbars=yes");
}






function ajaxguestbook()
{
	try
	{
		var gbname		= $F('gbname');
		var gbmail		= $F('gbmail');
		var gbtext		= $F('gbtext');
		var gbstueck	= $('gbstueck');
		var	stueck		= "";
/*		var alerttext	= ""; 	*/
		
		try
		{
			with (gbstueck) stueck = options[selectedIndex].value;
		}
		catch(e)
		{
			stueck		= $F('gbstueck');
		}
	    
	
		if(!gbname)
			alerttext	= "Geben Sie bitte Ihren Namen ein! <br/>";
			
		if(!gbmail)
			alerttext	= alerttext+"Geben Sie bitte Ihre E-Mail-Adresse ein! <br/>";
		else if(!isValidEmail(gbmail))
			alerttext	= alerttext+"Ihre E-Mail-Adresse scheint ung&uuml;ltig zu sein! <br/>";
	
		if(!gbtext)
			alerttext	= alerttext+"Geben Sie bitte Ihre Nachricht an uns ein! <br/>";
			
		if(alerttext)
		{
			if(!$('alertinfo'))
				new Insertion.Top('formdata', '<div id="alertinfo"></div>');
				
			$('alertinfo').update(alerttext);
			new Effect.Highlight('alertinfo', {endcolor:'#e4d5bc'});
		}
		else
		{
			var url = '/ajax/insert_guestbook.php';
			var pars = 'stueck='+stueck+'&gbname='+Base64.encode(gbname)+'&gbmail='+Base64.encode(gbmail)+'&gbtext='+Base64.encode(gbtext);
			var target = 'guestbookformular';	
			var myAjax = new Ajax.Updater(target, url, {method: 'get', parameters: pars});
		}
	}
	catch (e)
	{
		alert("Ein schwerwiegender Fehler ist aufgetrenten!\n"+e);
	}
}




function isValidEmail(strEmail)
{
	reg_ex5=/^\w[\w|\.|\-]+@\w[\w|\.|\-]+\.[a-zA-Z]{2,4}$/;

	// search email text for regular exp matches
	if (reg_ex5.test(strEmail)) 
		return true; 
	else
		return false;
} 


/**
*
* 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;
    }

}




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

var Url = {

    // public method for url encoding
    encode : function (string) {
        return escape(this._utf8_encode(string));
    },

    // public method for url decoding
    decode : function (string) {
        return this._utf8_decode(unescape(string));
    },

    // 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;
    }

}