function AXShunt(from,into,foc)
	{
	document.getElementById(from).style.display = 'none';
	document.getElementById(into).style.display = 'block';
	if(foc)
		{
		document.getElementById(foc).focus();
		document.getElementById(foc).select();
		}
	}

function AXSubmit(formField,dataCode,targetFile,targetElement,shuntFrom,shuntInto)
	{
	// Display Verarbeitung
		eisenJS_Verarbeitung_DISPLAY();

	// Create XML HTTP Object
		var req = false;

		if(window.XMLHttpRequest)
			{
			req = new XMLHttpRequest();
			}
		else if(window.ActiveXObject)
			{
			req = new ActiveXObject('Microsoft.XMLHTTP');
			}

	// Take Form Data
		formData = document.getElementById(formField).value;

	// Compose and Encode Query String
		formData_Encoded = formData.replace('+','+');
		formData_Encoded = urlencode(formData_Encoded);
		getData = '?AX_Data=' + formData_Encoded + '&AX_DataCode=' + dataCode;

	// Configure Asynchronous Action
		req.open('GET',targetFile + getData);

	// Configure Callback Action
		req.onreadystatechange = function()
			{
			if(req.readyState == '4')
				{
				// Remove Verarbeitung
					eisenJS_Verarbeitung_REMOVE();

				// Generate Output
					switch(req.status)
						{
						case 200 : // Okay
							document.getElementById(targetElement).innerHTML = req.responseText;
							AXShunt(shuntFrom,shuntInto);
							break;

						case 206 : // Partial Content
							document.getElementById(targetElement).innerHTML = req.responseText;
							alert('Only part of the information you requested was downloaded.\n\nIf you encounter further errors, please check your internet connection, refresh this page, then try again.');
							AXShunt(shuntFrom,shuntInto);
							break;

						case 400 : // Bad Request
							document.getElementById(targetElement).innerHTML = '<p>There was an error with your request. Please double-check your spelling, syntax and try again.</p>';
							AXShunt(shuntFrom,shuntInto);
							break;

						case 401 : // Un-authorised
							document.getElementById(targetElement).innerHTML = '<p>Please login to view the requested information.</p>';
							AXShunt(shuntFrom,shuntInto);
							break;

						case 403 : // Forbidden
							document.getElementById(targetElement).innerHTML = '<p>The server is too busy to respond to your request at this time. Please try again in a few moments.</p>';
							AXShunt(shuntFrom,shuntInto);
							break;

						case 404 : // File Not Found
							document.getElementById(targetElement).innerHTML = '<p>The information you requested was not found.</p>';
							AXShunt(shuntFrom,shuntInto);
							break;

						case 408 : // Request Time-out
							document.getElementById(targetElement).innerHTML = '<p>Your request has timed-out. Please try again in a few moments.</p>';
							AXShunt(shuntFrom,shuntInto);
							break;

						case 500 : // Internal Server Error
							document.getElementById(targetElement).innerHTML = '<p>Internal server error. Please try again in a few moments.</p>';
							AXShunt(shuntFrom,shuntInto);
							break;

						default: // General Error
							document.getElementById(targetElement).innerHTML = '<p>An error occured while responding to your request. Please refresh this page and try again.</p>';
							AXShunt(shuntFrom,shuntInto);
						}
				}
			}

	// Send Request
		req.send(null);
	}

function AXCheck(formField,dataCode,targetFile,targetElementLabel)
	{
	// Display Verarbeitung
		eisenJS_Verarbeitung_DISPLAY();

	// Create XML HTTP Object
		var req = false;

		if(window.XMLHttpRequest)
			{
			req = new XMLHttpRequest();
			}
		else if(window.ActiveXObject)
			{
			req = new ActiveXObject('Microsoft.XMLHTTP');
			}

	// Take Form Data
		if(document.getElementById(formField).checked == true)
			{
			formData = '1';
			}
		else if(document.getElementById(formField).checked == false)
			{
			formData = '0';
			}

	// Compose and Encode Query String
		getData = '?AX_Data=' + formData + '&AX_DataCode=' + dataCode;

	// Configure Asynchronous Action
		req.open('GET',targetFile + getData);

	// Configure Callback Action
		req.onreadystatechange = function()
			{
			if(req.readyState == '4')
				{
				// Remove Verarbeitung
					eisenJS_Verarbeitung_REMOVE();

				// Generate Output
					switch(req.status)
						{
						case 200 : // Okay
							document.getElementById(targetElementLabel).innerHTML = req.responseText;
							break;

						case 206 : // Partial Content
							alert('Only part of the information you requested was downloaded.\n\nIf you encounter further errors, please check your internet connection, refresh this page, then try again.');
							break;

						case 400 : // Bad Request
							alert('There was an error with your request. Please double-check your spelling, syntax and try again.');
							break;

						case 401 : // Un-authorised
							alert('Please login to view the requested information.');
							break;

						case 403 : // Forbidden
							alert('The server is too busy to respond to your request at this time. Please try again in a few moments.');
							break;

						case 404 : // File Not Found
							alert('The information you requested was not found.');
							break;

						case 408 : // Request Time-out
							alert('Your request has timed-out. Please try again in a few moments.');
							break;

						case 500 : // Internal Server Error
							alert('Internal server error. Please try again in a few moments.');
							break;

						default: // General Error
							alert('An error occured while responding to your request. Please refresh this page and try again.');
						}
				}
			}

	// Send Request
		req.send(null);
	}

// --

function urlencode( str ) {
    // URL-encodes string  
    // 
    // version: 905.1001
    // discuss at: http://phpjs.org/functions/urlencode
    // +   original by: Philip Peterson
    // +   improved by: Kevin van Zonneveld (http://kevin.vanzonneveld.net)
    // +      input by: AJ
    // +   improved by: Kevin van Zonneveld (http://kevin.vanzonneveld.net)
    // +   improved by: Brett Zamir (http://brettz9.blogspot.com)
    // +   bugfixed by: Kevin van Zonneveld (http://kevin.vanzonneveld.net)
    // +      input by: travc
    // +      input by: Brett Zamir (http://brettz9.blogspot.com)
    // +   bugfixed by: Kevin van Zonneveld (http://kevin.vanzonneveld.net)
    // +   improved by: Lars Fischer
    // %          note 1: info on what encoding functions to use from: http://xkr.us/articles/javascript/encode-compare/
    // *     example 1: urlencode('Kevin van Zonneveld!');
    // *     returns 1: 'Kevin+van+Zonneveld%21'
    // *     example 2: urlencode('http://kevin.vanzonneveld.net/');
    // *     returns 2: 'http%3A%2F%2Fkevin.vanzonneveld.net%2F'
    // *     example 3: urlencode('http://www.google.nl/search?q=php.js&ie=utf-8&oe=utf-8&aq=t&rls=com.ubuntu:en-US:unofficial&client=firefox-a');
    // *     returns 3: 'http%3A%2F%2Fwww.google.nl%2Fsearch%3Fq%3Dphp.js%26ie%3Dutf-8%26oe%3Dutf-8%26aq%3Dt%26rls%3Dcom.ubuntu%3Aen-US%3Aunofficial%26client%3Dfirefox-a'
                             
    var histogram = {}, unicodeStr='', hexEscStr='';
    var ret = (str+'').toString();
    
    var replacer = function(search, replace, str) {
        var tmp_arr = [];
        tmp_arr = str.split(search);
        return tmp_arr.join(replace);
    };
    
    // The histogram is identical to the one in urldecode.
    histogram["'"]   = '%27';
    histogram['(']   = '%28';
    histogram[')']   = '%29';
    histogram['*']   = '%2A';
    histogram['~']   = '%7E';
    histogram['!']   = '%21';
    histogram['%20'] = '+';
    histogram['\u00DC'] = '%DC';
    histogram['\u00FC'] = '%FC';
    histogram['\u00C4'] = '%D4';
    histogram['\u00E4'] = '%E4';
    histogram['\u00D6'] = '%D6';
    histogram['\u00F6'] = '%F6';
    histogram['\u00DF'] = '%DF';
    histogram['\u20AC'] = '%80';
    histogram['\u0081'] = '%81';
    histogram['\u201A'] = '%82';
    histogram['\u0192'] = '%83';
    histogram['\u201E'] = '%84';
    histogram['\u2026'] = '%85';
    histogram['\u2020'] = '%86';
    histogram['\u2021'] = '%87';
    histogram['\u02C6'] = '%88';
    histogram['\u2030'] = '%89';
    histogram['\u0160'] = '%8A';
    histogram['\u2039'] = '%8B';
    histogram['\u0152'] = '%8C';
    histogram['\u008D'] = '%8D';
    histogram['\u017D'] = '%8E';
    histogram['\u008F'] = '%8F';
    histogram['\u0090'] = '%90';
    histogram['\u2018'] = '%91';
    histogram['\u2019'] = '%92';
    histogram['\u201C'] = '%93';
    histogram['\u201D'] = '%94';
    histogram['\u2022'] = '%95';
    histogram['\u2013'] = '%96';
    histogram['\u2014'] = '%97';
    histogram['\u02DC'] = '%98';
    histogram['\u2122'] = '%99';
    histogram['\u0161'] = '%9A';
    histogram['\u203A'] = '%9B';
    histogram['\u0153'] = '%9C';
    histogram['\u009D'] = '%9D';
    histogram['\u017E'] = '%9E';
    histogram['\u0178'] = '%9F';
    
    // Begin with encodeURIComponent, which most resembles PHP's encoding functions
    ret = encodeURIComponent(ret);

    for (unicodeStr in histogram) {
        hexEscStr = histogram[unicodeStr];
        ret = replacer(unicodeStr, hexEscStr, ret); // Custom replace. No regexing
    }
    
    // Uppercase for full PHP compatibility
    return ret.replace(/(\%([a-z0-9]{2}))/g, function(full, m1, m2) {
        return "%"+m2.toUpperCase();
    });
}