function zwPanel(param, formId, validationCall, cookiePrefix, submissionRefId, trackbackTag) {
    
    this.zParam = param;
    this.zFormId = formId;
    this.zValidationCall = validationCall;
    this.zCookiePrefix = cookiePrefix;
    this.zSubmissionRefId = submissionRefId;
    this.zTrackbackTag = trackbackTag;
    this.zPostPause = 2000;

    this.zGotoParamParam;
    this.zGotoParamPage;
    this.zGotoParamLink;
    this.zTrackback;
    this.zExternalFormUrl;
    
    zwPanel.prototype.qStringValue = zQStringValue;

    // navigation methods
    zwPanel.prototype.setPageParams = zSetPageParams;
    zwPanel.prototype.gotoPage = zGotoPage;
    zwPanel.prototype.gotoPageReturn = zGotoPageReturn;
    zwPanel.prototype.gotoNextPage = zGotoNextPage;
    zwPanel.prototype.gotoPrevPage = zGotoPrevPage; 
    zwPanel.prototype.redirect = zRedirect; 
    
    // Form methods
    zwPanel.prototype.isRadioSelected = isRadioSelected;
    zwPanel.prototype.getFieldValue = zGetFieldValue;
    zwPanel.prototype.setFieldValue = zSetFieldValue;
    zwPanel.prototype.defaultForm = zDefaultForm;
    zwPanel.prototype.storeForm = zStoreForm;
    zwPanel.prototype.submitZForm = zSubmitZForm;
    zwPanel.prototype.submitZFormRedirect = zSubmitZFormRedirect;
    zwPanel.prototype.hasForm = zHasForm;
    zwPanel.prototype.getForm = zGetForm;
    zwPanel.prototype.getFormBackup = zGetFormBackup;
    zwPanel.prototype.isPageComplete = zIsPageComplete;
    zwPanel.prototype.postSubmissionVars = zPostSubmissionVars;
    zwPanel.prototype.setExternalFormUrl = zSetExternalFormUrl;
    
    zwPanel.prototype.formToCookies = zFormToCookies;
    zwPanel.prototype.cookiesToForm = zCookiesToForm;

    zwPanel.prototype.setEmailKey = zSetEmailKey;
    zwPanel.prototype.getEmailKey = zGetEmailKey;
    
    // Cookie methods
    zwPanel.prototype.incrementPageCount = zIncrementPageCount;
    zwPanel.prototype.decrementPageCount = zDecrementPageCount;
    zwPanel.prototype.setPageCookieForNextPage = zSetPageCookieForNextPage;
    zwPanel.prototype.getPageCookieForPrevPage = zGetPageCookieForPrevPage;
    zwPanel.prototype.clearCookies = zClearCookies;
    zwPanel.prototype.setC = zSetC;
    zwPanel.prototype.getC = zGetC;
    zwPanel.prototype.setZiftC = zSetZiftC;
    zwPanel.prototype.getZiftC = zGetZiftC;
    
    // Serialization of form data/Trackback links
    zwPanel.prototype.getSerializedData = zGetSerializedData;
    zwPanel.prototype.loadSerialized = zLoadSerialized;
    zwPanel.prototype.excludeFromTrackback = zExcludeFromTrackback;
    zwPanel.prototype.getTrackbackLink = zGetTrackbackLink;
    zwPanel.prototype.setTrackbacks = zSetTrackbacks;   
}
function zGetFormId() {
    return this.zFormId;
}
function zSetExternalFormUrl(url) {
    this.zExternalFormUrl = url;
}
function zQStringValue(param) {
    var query=document.location.search.substring(1);
    if (query.length > 0){
        var params=query.split('&');
        for (var i=0 ; i<params.length ; i++){
            var pos = params[i].indexOf('=');
            var name = params[i].substring(0, pos);
            var value = params[i].substring(pos + 1);
            if (name == param) {
                return value;
                break;
            }
        }
    }
    return null
}
function isRadioSelected(fieldName) {
    var zForm = document.getElementById(zPanel.zFormId);
    if (zForm != null) {
        var zChecked = false;
        var elems = document.getElementsByName(fieldName);
        for (var i = 0; i < elems.length && !zChecked; i++) {
            var elem = elems[i];
            var id = elem.id;
            if (elem.tagName.toLowerCase() == 'input' && elem.type == 'radio' && id.indexOf(fieldName) == 0) { 
                zChecked = elem.checked;                
            }
        }
        return zChecked;
    }
    return true;
}
function zSetPageParams(param, page, link) {
    this.zGotoParamParam = param;
    this.zGotoParamPage = page;
    this.zGotoParamLink = link;
}
function zGotoPage(param, page, link, doSubmit) {
    this.setPageParams(param, page, link);
    if (doSubmit && this.hasForm()) {
        var success = eval(this.zValidationCall);
        if (success) {
            this.storeForm();
            this.submitZForm();
            //this.gotoPageReturn();
        }
    } else {
        this.storeForm();
        this.gotoPageReturn();
    }
}
function zRedirect(param, url, target) {
    //var cleanurl = unescape(url);
    this.setPageParams(param);
    var doRedirect = false;
    if (this.hasForm()) {
        doRedirect = eval(this.zValidationCall);
        if (doRedirect) {
            this.storeForm();
            this.submitZFormRedirect(url, target);
            doRedirect = false;
        }
    } else {
        doRedirect = true;
        this.storeForm();               
    }   
    if (doRedirect) {
        if (target == null)
            document.location.href = url;
        else {
            window.open(url);
        }
    }
}
function zIsPageComplete(param, step, page) {
    var isComplete = false;
    try {
        var stepId = step;
        if (step == "next")
            stepId = zGetNextPageInternal(param, page);
        if (this.getC(this.zCookiePrefix + "step" + stepId) == "submitted")
            isComplete = true;
    } catch (err) {
    }
    return isComplete;
}
function zGotoPageReturn() {
    var param = this.zGotoParamParam;
    var page = this.zGotoParamPage;
    var link = this.zGotoParamLink;
    var urlBase = document.location.href;
    if (urlBase.indexOf('#') != -1) {
        urlBase = urlBase.substring(0,urlBase.indexOf('#'));
    }
    var index = urlBase.indexOf('?');
    var prevPage = '';
    var oldQuery = '';
    if (index != -1) {
        oldQuery = urlBase.substring(index + 1);
        urlBase = urlBase.substring(0,index);
    }
    var newQuery = '';
    if (oldQuery.length > 0){
        var found = false;
        var params=oldQuery.split('&');
        for (var i=0 ; i<params.length ; i++){
            var pos = params[i].indexOf('=');
            var name = params[i].substring(0, pos);
            var value = params[i].substring(pos + 1);
            if (name == param) {
                if (newQuery.length > 0) newQuery += '&';
                newQuery += param + '=' + page;
                found = true;
                prevPage = value;
            } else if (name != 'zKey' && name != 'zSerial') {
                if (newQuery.length > 0) newQuery += '&';
                newQuery += params[i];
            }
        }
        if (!found)
            newQuery += '&' + param + '=' + page;
    } else {
        newQuery = param + '=' + page;
    }
    document.location.href = urlBase + '?' + newQuery;
}
function zGotoNextPage(param, link) {
    zGotoNextPageInternal(param, link);
}
function zGotoPrevPage(param, link) {
    var prevPage = this.getPageCookieForPrevPage();
    this.decrementPageCount();
    this.gotoPage(param, prevPage, link);
}
function zIncrementPageCount() {
    var pageCount = this.getC(this.zCookiePrefix + 'zPageCount');
    if (pageCount == null || pageCount == '' || (new Number(pageCount)) < 0)
        pageCount = 0;
    this.setC(this.zCookiePrefix + 'zPageCount', (new Number(pageCount) + 1), 10);
}
function zDecrementPageCount() {
    var pageCount = this.getC(this.zCookiePrefix + 'zPageCount');
    if (pageCount == null || pageCount == '' || (new Number(pageCount)) < 1)
        pageCount = 1;
    this.setC(this.zCookiePrefix + 'zPageCount', (new Number(pageCount) - 1), 10);
}
function zSetPageCookieForNextPage(value) {
    var pageCount = this.getC(this.zCookiePrefix + 'zPageCount');
    if (pageCount == null || pageCount == '')
        pageCount = 0;
    this.setC(this.zCookiePrefix + 'zPreviousPage_' + pageCount, value, 10);
}
function zGetPageCookieForPrevPage() {
    var pageCount = this.getC(this.zCookiePrefix + 'zPageCount');
    if (pageCount != null && pageCount != '' && pageCount != 0) {
        pageCount = (new Number(pageCount)) - 1;
        return this.getC(this.zCookiePrefix + 'zPreviousPage_' + pageCount);
    }
    return '';
}
function zGetFieldValue(elem) {
    if (elem.tagName.toLowerCase() == 'input' && elem.getAttribute('ziftinternal') == null) {
        if (elem.type == 'text' || elem.type == 'hidden') return elem.value;
        else if (elem.type == 'checkbox') return elem.checked.toString();
        else if (elem.type == 'radio') return elem.checked.toString();
    } else if (elem.tagName.toLowerCase() == 'textarea') {
        return elem.value;
    } else if (elem.tagName.toLowerCase() == 'select') {
        return elem.selectedIndex.toString();
    }
    return null;
}
function zSetFieldValue(elem, value) {
    if (elem.getAttribute("cookie") && elem.getAttribute("cookie") == 'ignore')
        return;
    if (elem.tagName.toLowerCase() == 'input' && elem.getAttribute('ziftinternal') == null) {
        if (elem.type == 'text') elem.value = value;
        else if (elem.type == 'hidden') elem.value = value;
        else if (elem.type == 'checkbox') elem.checked = (value == Boolean(true).toString());
        else if (elem.type == 'radio') elem.checked = (value == Boolean(true).toString());
    } else if (elem.tagName.toLowerCase() == 'textarea') {
        elem.value = value;
    } else if (elem.tagName.toLowerCase() == 'select') {
        elem.selectedIndex = value;
    }
}
function zFormToCookies(zForm) {
    for (var i = 0; i < zForm.length; i++) {
        var value = this.getFieldValue(zForm.elements[i]);
        if (value) {
            this.setC(this.zCookiePrefix + zForm.elements[i].id, value, 10);
        }
    }
}
function zCookiesToForm(zForm) {
    for (var i = 0; i < zForm.length; i++) {
        if (zForm.elements[i].id == "emailKey") {
            this.setFieldValue(zForm.elements[i], this.getEmailKey());
        } else {
            var value = this.getC(this.zCookiePrefix + zForm.elements[i].id);
            if (value)
                this.setFieldValue(zForm.elements[i], value);
        }
    }
}
function zClearCookies() {
    var cookies = document.cookie.split(';');
    for(var i=0;i < cookies.length;i++) {
        var c = cookies[i];
        while (c.charAt(0)==' ') c = c.substring(1,c.length);
        if (c.indexOf(this.zCookiePrefix) == 0 && c.indexOf('zpreviouspage') == -1 && c.indexOf('zpagecount') == -1) {
            var parts = c.split('=');
            this.setC(parts[0], '', 1);
        }
    }
}
function zGetSerializedData() {
    if (this.getForm() != null)
        this.formToCookies(this.getForm());
    var cookies = document.cookie.split(';');
    var serial = '';
    var zKey = 'k' + Math.floor(Math.random()*1001);
    for(var i=0;i < cookies.length;i++) {
        var c = cookies[i];
        while (c.charAt(0)==' ') c = c.substring(1,c.length);
        if (c.indexOf(this.zCookiePrefix) == 0 && !this.excludeFromTrackback(c)) {
            var parts = c.split('=');
            if (serial != '') serial += '&';
            serial += encodeURI(zKey + parts[0].substring(this.zCookiePrefix.length)) + '=' + encodeURI(parts[1]);
        }
    }
    return 'zKey=' + zKey + '&zSerial=' + encodeURIComponent(serial);
}
function zLoadSerialized() {
    var key = this.qStringValue('zKey');
    var serial = this.qStringValue('zSerial');
    if (key != null && key != '') {
        this.clearCookies();
        var serials = decodeURIComponent(serial).split('&');
        for(var i=0;i < serials.length;i++) {
            var field = serials[i];
            var name = decodeURI(field.split('=')[0]);
            var value = decodeURI(field.split('=')[1]);
            this.setC(this.zCookiePrefix + name.substring(key.length), value, 1);
        }
    }
}
function zExcludeFromTrackback(param) {
    if (param.indexOf('zpreviouspage') != -1 || param.indexOf('zpagecount') != -1 || param.indexOf(this.zSubmissionRefId) != -1) {
        return true;
    }
    var value = param.split('=')[1];
    if (value == 'false' || value == '') return true;
    return false;
}

function zGetTrackbackLink() {
    if (this.zTrackback != null && this.zTrackback != '') 
        return this.zTrackback;
    this.zTrackback = document.location.href;
    if (this.zTrackback.indexOf('?') == -1) this.zTrackback += '?'; 
    else this.zTrackback += '&';
    this.zTrackback += this.getSerializedData();
    return this.zTrackback;
}
function zSetTrackbacks() {
    var elems = document.getElementsByName(this.zTrackbackTag);
    for(var i=0;i < elems.length;i++) {
        if (elems[i].tagName.toLowerCase() == 'a') elems[i].href = this.getTrackbackLink();
        else if (elems[i].tagName.toLowerCase() == 'span' || elems[i].tagName.toLowerCase() == 'textarea') elems[i].innerHTML = this.getTrackbackLink();
    }
}
function zSetC(name,value,days) {
    var expires = '';
    if (days) {
        var date = new Date();
        date.setTime(date.getTime()+(days*24*60*60*1000));
        var expires = '; expires='+date.toGMTString();
    } 
    document.cookie = name.toLowerCase()+'='+value+expires+'; path=/';
}
function zSetZiftC(name,value,days) {
    this.setC(this.zCookiePrefix + name, value, days);
}
function zGetC(name) {
    var nameEQ = name.toLowerCase() + '=';
    var ca = document.cookie.split(';');
    for(var i=0;i < ca.length;i++) {
        var c = ca[i];
        while (c.charAt(0)==' ') c = c.substring(1,c.length);
        if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length,c.length);
    }
    return null;
}
function zGetZiftC(name) {
    return this.getC(this.zCookiePrefix + name);
}
function zDefaultForm() {
    if (this.getForm() != null)
        this.cookiesToForm(this.getForm());
}
function zHasForm() {
    return this.getForm() != null;
}
function zStoreForm() {
    if (this.hasForm()) {
        if (document.getElementById(this.zSubmissionRefId).value == '') {
            var rand = Math.floor(Math.random()*1000000000000001);
            document.getElementById(this.zSubmissionRefId).value = rand;
        }
        try {
            this.formToCookies(this.getForm());
        } catch(err) {}
        return true;
    }
    return false;
}
function zPause(millis) {
    var date = new Date();
    var curDate = null;

    do { curDate = new Date(); }
    while(curDate-date < millis);
}
function zSubmitZForm() {
    var n = 'f' + Math.floor(Math.random() * 99999);
    var d = document.createElement('DIV');
    
    d.innerHTML = '<iframe style="display:none" src="about:blank" id="'+n+'" name="'+n+'" onload="zFormComplete(\'' + n + '\')"></iframe>';
    document.body.appendChild(d);

    var form = this.getForm();
    var cont = true;
    if (form.id != this.zFormId) {
    	var backup = this.getFormBackup();
    	if (backup) {
    		form.setAttribute("onsubmit", backup.getAttribute("onsubmit"));
    		form.setAttribute("action", backup.getAttribute("action"));
    		form.setAttribute("method", backup.getAttribute("post"));
    		//<span action="http://localhost:8080/open/ExternalFormProcessor.html" onsubmit="return zFormValidation(this)" method="post" id="zFormId_bak"></span>
    	} else {
    		cont = false;
    		this.gotoPageReturn();
    	}
    }
    if (cont) {
    	this.getForm().setAttribute('target',n);
    	this.getForm().submit();     
    }
}
function zFormComplete(id) {
    try {
    var i = document.getElementById(id);
    if (i.contentDocument) {
        var d = i.contentDocument;
    } else if (i.contentWindow) {
        var d = i.contentWindow.document;
    } else {
        var d = window.frames[id].document;
    }
    if (d.location.href == "about:blank") {
        return;
    }
    } catch (err) {}
    zPanel.gotoPageReturn();
}
function zSubmitZFormRedirect(url, target) {
    var n = 'f' + Math.floor(Math.random() * 99999);
    var d = document.createElement('DIV');
    
    d.innerHTML = '<iframe style="display:none" src="about:blank" id="'+n+'" name="'+n+'" onload="zFormCompleteRedirect(\'' + n + '\', \'' + url + '\', \'' + target + '\')"></iframe>';
    document.body.appendChild(d);

    this.getForm().setAttribute('target',n);
    this.getForm().submit(); 
}
function zFormCompleteRedirect(id, url, target) {
    try {
    var i = document.getElementById(id);
    if (i.contentDocument) {
        var d = i.contentDocument;
    } else if (i.contentWindow) {
        var d = i.contentWindow.document;
    } else {
        var d = window.frames[id].document;
    }
    if (d.location.href == "about:blank") {
        return;
    }
    } catch (err) {}
    if (target != 'undefined' && target != null) {
        window.open(url);
    } else {
        document.location.href = url;
    }
}
function zPostSubmissionVars(submissionVars) {
    var dHidden = document.createElement('DIV');
    dHidden.style.display = "none";
    var f = document.createElement('FORM');
    f.name = 'f' + Math.floor(Math.random() * 99999);
    f.action = this.zExternalFormUrl;
    var inputVars = document.createElement('INPUT');
    inputVars.type = "text";
    inputVars.name = "submissionVars";
    inputVars.value = submissionVars;
    f.appendChild(inputVars);
    
    var inputRefId = document.createElement('INPUT');
    inputRefId.type = "text";
    inputRefId.name = this.zSubmissionRefId;
    inputRefId.value = this.getC(this.zCookiePrefix + this.zSubmissionRefId);
    f.appendChild(inputRefId);
    dHidden.appendChild(f);
    document.body.appendChild(dHidden);
    
    var n = 'f' + Math.floor(Math.random() * 99999);
    var d = document.createElement('DIV');  
    d.innerHTML = '<iframe style="display:none" src="about:blank" id="'+n+'" name="'+n+'"></iframe>';
    document.body.appendChild(d);

    f.setAttribute('target',n);
    f.submit();
    zPause(this.zPostPause);
}
function zSetEmailKey() {
    var ekey = this.qStringValue("CakeUUID");
    if (ekey != null && ekey != '' && ekey.indexOf('[mailing_id]') == -1)
        this.setC("emailkey", ekey);
}
function zGetEmailKey() {
    return this.getC("emailkey");
}

function zGetForm() {
	if (z_getIEVersion() <= 8) {
		if (this.getFormBackup()) {
			var forms = zS(":parent form");
			if (forms && forms.length > 0)
				return forms[0];
		}
		if (document.getElementById(this.zFormId)) {
			return document.getElementById(this.zFormId);
		}
	} else {
		if (document.getElementById(this.zFormId)) {
			return document.getElementById(this.zFormId);
		}
		if (this.getFormBackup()) {
			var forms = zS(":parent form");
			if (forms && forms.length > 0)
				return forms[0];
		}
	}
}

function zGetFormBackup() {
	if (document.getElementById(this.zFormId + "_bak")) {
		return document.getElementById(this.zFormId + "_bak");
	}
	return null;
}

function z_getIEVersion(){
	var rv = 999; 
	try {
		if (navigator.appName == 'Microsoft Internet Explorer') {
			var ua = navigator.userAgent;
			var re  = new RegExp("MSIE ([0-9]{1,}[\.0-9]{0,})");
			if (re.exec(ua) != null)
				rv = parseFloat( RegExp.$1 );
		}
	} catch (err) {}
	return rv;
}