function ismaxlength(obj) {
    var mlength = obj.getAttribute? parseInt(obj.getAttribute("maxlength")) : ""
    if (obj.getAttribute && obj.value.length > mlength)
        obj.value = obj.value.substring(0, mlength)
}

var lastPotterChangedElement;
var lastPotterChangeTimeout;

function processPotterInputChange(element) {

    if (lastPotterChangedElement){
        var lastId = lastPotterChangedElement.id;
        var thisId = element.id;
        lastId = lastId.substring(0, lastId.lastIndexOf('|'));
        thisId = thisId.substring(0, thisId.lastIndexOf('|'));
        if( lastId != thisId){
            doProcessPotterInputChange(lastPotterChangedElement);
        }
    }


    lastPotterChangedElement = element;
    if ( lastPotterChangeTimeout ) {
        clearTimeout(lastPotterChangeTimeout);
    }
    lastPotterChangeTimeout = setTimeout('potterCheckChangeTrigger()', 1);
}

function potterCheckChangeTrigger() {
    doProcessPotterInputChange(lastPotterChangedElement);
    lastPotterChangeTimeout = null;
    lastPotterChangedElement = null;
}

function potterClearChangeTrigger() {
    if ( lastPotterChangeTimeout ) {
        clearTimeout(lastPotterChangeTimeout);
    }
    lastPotterChangeTimeout = null;
    lastPotterChangedElement = null;
    return true;
}

function doProcessPotterInputChange(element) {
    if( !document.getElementById(element.id) ){
        //alert('Ignoring ajax form sending, as main form has aready been submitted.');
        return;
    }

    var formulary = element.form;
    var elementName = element.name;

    var _backup_bean = getFormInputValue(formulary, '_f:bean');
    var _backup_prop = getFormInputValue(formulary, '_f:prop');
    var _backup_pAction = getFormInputValue(formulary, 'pAction');
    var _backup_handler = getFormInputValue(formulary, 'mvchandler');
    var _backup_action = getFormInputValue(formulary, 'action');
    /*var _backup_FormAction = formulary.action; */

    prepareFormForHandler(formulary, 'com.polymita.potter.dynForms.processing.formProcessing.FormChangeHandler', 'process');
    setFormInputValue( formulary, 'modifiedFieldName', elementName );
    var formBody = getFormBody(formulary, false);

    setFormInputValue(formulary, '_f:bean', _backup_bean);
    setFormInputValue(formulary, '_f:prop', _backup_prop);
    setFormInputValue(formulary, 'pAction', _backup_pAction);
    setFormInputValue(formulary, 'mvchandler', _backup_handler);
    setFormInputValue(formulary, 'action', _backup_action);
    /*formulary.action = _backup_FormAction; */

    var url = "Controller";
    var formProcessor = new Object();
    formProcessor.onresponse = function() {
        if (formProcessor.formRequest.readyState == 4) {
            if (formProcessor.formRequest.status == 200) {
                var xmlResponse = formProcessor.formRequest.responseXML;
                //alert("Received response "+formProcessor.formRequest.responseText);
                if (xmlResponse != null) {
                    //alert("Received XML response "+xmlResponse);
                    var setValues = xmlResponse.documentElement.getElementsByTagName('setvalue');
                    //alert("setValues="+setValues+" with size "+ (setValues?setValues.length:0) );
                    for (i = 0; i < setValues.length; i++) {
                        var fieldId = setValues[i].getAttribute("name");
                        var fieldValue = setValues[i].getAttribute("value");
                        /*alert("Putting field "+fieldId+" = "+fieldValue);*/
                        formulary.elements[fieldId].value = fieldValue;
                    }
                    var setListValues = xmlResponse.documentElement.getElementsByTagName('setListValues');
                    //alert("setListValues ="+setListValues+" with size "+ (setListValues?setListValues.length:0) );
                    for (i = 0; i < setListValues.length; i++) {
                        var fieldId = setListValues[i].getAttribute("name");
                        var formField =  formulary.elements[fieldId];
                        if ( formField.nodeName.toLowerCase() == 'select') {
                            var selectedValue = formField.options[formField.selectedIndex].value;
                            var optionsToAdd = setListValues[i].getElementsByTagName("option");
                            if(optionsToAdd.length>0){
                                formField.options.length=1; //Leave first null element
                                formField.disabled = false;
                                for(j = 0; j<optionsToAdd.length; j++){
                                    var optionToAdd = optionsToAdd[j];
                                    var option = new Option(optionToAdd.getAttribute("text"), optionToAdd.getAttribute("value") );
                                    formField.options[formField.options.length]=option;
                                    if ( selectedValue ==  optionToAdd.getAttribute("value"))
                                        formField.selectedIndex = j+1;
                                    if ( "true" == optionToAdd.getAttribute("selected") )
                                        formField.selectedIndex = j+1;
                                }
                            } else {
                                formField.selectedIndex = 0;
                                formField.disabled = true;
                            }
                        }
                    }

                }
            }
            else {
                window.status = "XmlHttpRequest: There was a problem retrieving the data:\n" + formProcessor.formRequest.status + ' ' + formProcessor.formRequest.statusText;
            }
        }
    }

    if (window.XMLHttpRequest) {
        formProcessor.formRequest = new XMLHttpRequest();
    }
    else if (window.ActiveXObject) {
        formProcessor.formRequest = new ActiveXObject('Microsoft.XMLHTTP');
    }
    if (formProcessor.formRequest != null) {
        formProcessor.formRequest.onreadystatechange = formProcessor.onresponse;
        if (formBody) {
            formProcessor.formRequest.open('POST', url, true);
            formProcessor.formRequest.setRequestHeader("Content-Type", "multipart/form-data; charset=UTF-8; boundary=" + boundary);
        } else {
            formProcessor.formRequest.open('GET', url, true);
        }
        if (ajaxAlertsEnabled)
            alert("Sending body:\n" + formBody);
        formProcessor.formRequest.send(formBody);
        return false;
    }
}

function potterReplaceTextArea(idToReplace, size, height, lang, imgURL, lnkURL){
    var sBasePath = '/collage/fckeditor/';
    var oFCKeditor = new FCKeditor(idToReplace, size,height) ;
    oFCKeditor.BasePath = sBasePath;
    oFCKeditor.Config['CustomConfigurationsPath'] = '/collage/potter/fieldHandlers/HTMLTextArea/fckConfig.js';
    var width = size;
    if (width < 120)
        oFCKeditor.ToolbarSet = 'potterToolbar0';
    else if (width < 170)
        oFCKeditor.ToolbarSet = 'potterToolbar1';
    else if (width < 240)
        oFCKeditor.ToolbarSet = 'potterToolbar2';
    else if (width < 310)
        oFCKeditor.ToolbarSet = 'potterToolbar3';
    else if (width < 500)
        oFCKeditor.ToolbarSet = 'potterToolbar4';
    else
        oFCKeditor.ToolbarSet = 'potterToolbar5';

    oFCKeditor.Config["AutoDetectLanguage"] = false;
    oFCKeditor.Config["LinkBrowserURL"] = lnkURL.replace(/&amp;/g,'&');
    oFCKeditor.Config["ImageBrowserURL"] = imgURL.replace(/&amp;/g,'&');
    oFCKeditor.Config["LinkBrowserWindowWidth"] = '550';
    oFCKeditor.Config["LinkBrowserWindowHeight"] = '500';
    oFCKeditor.Config["ImageBrowserWindowWidth"] = '550';
    oFCKeditor.Config["ImageBrowserWindowHeight"] = '500';


    oFCKeditor.Config["DefaultLanguage"] = lang;

    oFCKeditor.ReplaceTextarea();
    
    return oFCKeditor;
}

function getDefinedCssClasses(){
    var result = new Array();
    if (document.styleSheets) {
        for (var i=0; i<document.styleSheets.length; i++) {
          var styleSheet=document.styleSheets[i];
            var rules;
            if (styleSheet.cssRules) {
              rules = styleSheet.cssRules;
            } else {
              rules = styleSheet.rules;
            }
           for(j=0; j<rules.length; j++){
               cssRule = rules[j];
               if(cssRule.selectorText.indexOf('.')==0 && cssRule.selectorText.indexOf(':')==-1 )
                  result.push(cssRule.selectorText.substring(1));
           }
        }
    }
    return result;
}

function disableFormChecks(form) {
    var i;
    for (i=0; i<form.elements.length; i++) {
        if (form.elements[i].type == "checkbox") form.elements[i].disabled="disabled";
    }
}