//==================================================================================
//==================================================================================
//
// Tools-MODUL Projektbezogene Methoden und Objekte
// OO-PROGRAMMIERUNG
// AUTOR: DF
// ERSTELLT: 09.05.2005
//
//==================================================================================
//==================================================================================

// ============================================================
// Klasse Tools
// ============================================================

function Tools() {
}

// ------------------------------------------------------------
// Private Klasseneigenschaften
// ------------------------------------------------------------

// ------------------------------------------------------------
// Private Instanzmethoden
// ------------------------------------------------------------

// ------------------------------------------------------------
// Öffentliche Instanzmethoden
// ------------------------------------------------------------

// ------------------------------------------------------------
// Öffentliche Klasseneigenschaften
// ------------------------------------------------------------


// ------------------------------------------------------------
// Private Klassenmethoden
// ------------------------------------------------------------

// ------------------------------------------------------------
// Öffentliche Klassenmethoden
// ------------------------------------------------------------

Tools.randomize = function(n) {
  if (arguments.length!=1) {
    return false;
  }
  var sum = n * Math.random();
  var randomNumber = Math.floor(sum)+1;
  return randomNumber;
}

Tools.openMicrosite = function(htmlElement, properties) {
  if (!arguments.length) {
    return false;
  }
  var url = '';
  var docSource = '';
  var tagName = htmlElement['tagName'];
  tagName = tagName.toLowerCase();
  if (tagName == 'form'){
    var nameValuePeer = [];
    for (var i=0; i<htmlElement.elements.length; i++){
      nameValuePeer[i] = {};
      if (htmlElement.elements[i].name.length){
        if (htmlElement.elements[i].type == 'select-one'){
            nameValuePeer[i]['name'] = htmlElement.elements[i].name;
            nameValuePeer[i]['value'] = htmlElement.elements[i].options[htmlElement.elements[i].selectedIndex].value;
        } else if (htmlElement.elements[i].type == 'select-multiple'){
          nameValuePeer[i]['name'] = htmlElement.elements[i].name;
          nameValuePeer[i]['value'] = [];
          for (var ii=0; ii<htmlElement.elements[i].options.length; ii++){
            if (htmlElement.elements[i].options[ii].selected){
              nameValuePeer[i]['value'][ii] = htmlElement.elements[i].options[ii].value;
            }
          }
        } else if (htmlElement.elements[i].type == 'radio'){
          nameValuePeer[i]['name'] = htmlElement.elements[i].name;
          if (htmlElement.elements[i].length){
            nameValuePeer[i]['value'] = [];
            for (var ii=0; ii<htmlElement.elements[i].length; ii++){
              if (htmlElement.elements[i][ii].checked){
                nameValuePeer[i]['value'][ii] = htmlElement.elements[i][ii].value;
              }
            }
          } else {
            if (htmlElement.elements[i].checked){
              nameValuePeer[i]['value'] = htmlElement.elements[i].value;
            }
          }
        } else if (htmlElement.elements[i].type == 'checkbox'){
          nameValuePeer[i]['name'] = htmlElement.elements[i].name;
          if (htmlElement.elements[i].length){
            nameValuePeer[i]['value'] = [];
            for (var ii=0; ii<htmlElement.elements[i].length; ii++){
              if (htmlElement.elements[i][ii].checked){
                nameValuePeer[i]['value'][ii] = htmlElement.elements[i][ii].value;
              }
            }
          } else {
            if (htmlElement.elements[i].checked){
              nameValuePeer[i]['value'] = htmlElement.elements[i].value;
            }
          }
        } else {
          nameValuePeer[i]['name'] = htmlElement.elements[i].name;
          nameValuePeer[i]['value'] = htmlElement.elements[i].value;
        }
      }
    }
    if (!htmlElement.method || htmlElement.method.toLowerCase() != 'post'){
      url += htmlElement.action + '?';
      for (var f=0; f<nameValuePeer.length; f++){
        if (typeof nameValuePeer[f]['value'] == 'object'){
          for (var ff=0; ff<nameValuePeer[f]['value'].length; ff++){
            if (nameValuePeer[f]['value'][ff]){
              url += '&' + encodeURIComponent(nameValuePeer[f]['name']);
              url += '=' + encodeURIComponent(nameValuePeer[f]['value'][ff]);
            }
          }
        } else {
          if (nameValuePeer[f]['value']){
            url += '&' + encodeURIComponent(nameValuePeer[f]['name']);
            url += '=' + encodeURIComponent(nameValuePeer[f]['value']);
          }
        }
      }
    } else {
      docSource += '<html>\n<head><title></title><meta http-equiv="content-type" content="application/xhtml+xml; charset=UTF-8" /></head>\n<body background-color="#ffffff" onload="document.forms[\'myform\'].submit();"><div style="display: none;">\n';
      docSource += '<form name="myform" action="'+ htmlElement.action +'" method="post">\n';
      for (var f=0; f<nameValuePeer.length; f++){
        if (typeof nameValuePeer[f]['value'] == 'object'){
          for (var ff=0; ff<nameValuePeer[f]['value'].length; ff++){
            if (nameValuePeer[f]['value'][ff]){
              docSource += '<input type="checkbox" name="'+ nameValuePeer[f]['name'] +'" value="'+ nameValuePeer[f]['value'][ff] +'" checked="checked"/>\n';
            }
          }
        } else {
          if (nameValuePeer[f]['value']){
            docSource += '<input type="checkbox" name="'+ nameValuePeer[f]['name'] +'" value="'+ nameValuePeer[f]['value'] +'" checked="checked"/>\n';
          }
        }
      }
      docSource += '</form>\n</div></body>\n</html>';
    }
  } else if (tagName == 'a' || tagName == 'area'){
    url += htmlElement.href;
  }
  var windowProps = '';
  if (arguments[1]){
    windowProps = properties;
  } else {
    windowProps = 'width=800,height=600,scrollbars=yes,locationbar=no,menubar=no';
  }
  var fenster = window.open(url, 'Micorsite', windowProps);
  if (docSource.length){
    var doc = fenster.document;
    doc.open();
    doc.write(docSource);
    doc.close();
  }
  fenster.focus();
  return false;
}

Tools.createDatebasedLink = function(url, field) {
  if (arguments.length!=2) {
    return false;
  }
  var datum = new Date();
  var day = datum.getDate();
  if (day < 10){
    day = '0' + day;
  }
  var month = datum.getMonth();
  month++;
  if (month < 10){
    month = '0' + month;
  }
  var year = datum.getFullYear();
  var cmsdate = year + '' + month + '' + day;
  var newURL = '';
  if (url){
    newURL += url;
    if (field){
      newURL += '&' + field + '=' + cmsdate;
    }
  }
  if (newURL){
    window.location = newURL;
  }
  return false;
}
    
Tools.getCookieValue = function(cookieName){
  var cookieValue = '';
  if (! navigator.cookieEnabled){
    alert('Ihr Browser erlaubt keine Cookies!');
    return cookieValue;
  }
  if (! cookieName){
    return cookieValue;
  }
  var allCookies = document.cookie;
  var allCookiesArr = allCookies.split(/\;/);
  var regExp = new RegExp('^' + cookieName + '=');
  for (var i=0; i<allCookiesArr.length; i++){
    if (! allCookiesArr[i].match(regExp)){
      continue;
    }
    cookieValue = allCookiesArr[i].replace(regExp,'');
  }
  if (cookieValue.match(/^"/) && cookieValue.match(/"$/)){
    cookieValue = cookieValue.replace(/^"/,'');
    cookieValue = cookieValue.replace(/"$/,'');
  }
  cookieValue = cookieValue.replace(/###/,';');
  return cookieValue;
}
    
Tools.setCookieValue = function(cookieValue, cookieName, expiresDate, path, version){
  if (! navigator.cookieEnabled){
    alert('Ihr Browser erlaubt keine Cookies!');
    return false;
  }
  if (! cookieValue.length){
    //return false;
  }
  if(! cookieName){
    cookieName = 'myCookie';
  }
  var expDate = Tools.DateToGMTStringCookie(expiresDate);
  if (cookieValue.length >= 4000){
    alert('Das Cookie kann nicht gespeichert werden.\nDie Datenmenge übersteigt die maximal zu speichernde Datenmenge eines Cookies.\nBitte überprüfen Sie Ihre Daten.');
    return false;
  }
  cookieValue = cookieValue.replace(/;/,'###');
  var cookieStr = cookieName +'="' + cookieValue +'";';
  expiresDate = new Date(2006,11,3); 
  if (expDate){
    cookieStr += ' expires='+ expDate +';';
  }
  if (path){
    cookieStr += ' path='+ path + ';';
  }
  version = 3;
  if (version && version.toString().length){
    cookieStr += ' version="'+ version + '";';
  }
  document.cookie = cookieStr;
}
    
Tools.DateToGMTStringCookie = function(date){
  if (! date){
    return false;
  }
  var str = '';
  var gtm = '';
  var gtmJS = date.toGMTString();
  var gtmArr = gtmJS.split(/ /);
  for (var i=0; i<gtmArr.length; i++){
    if (i>1 && i<4){
      gtm += '-';
    } else if (i > 0){
      gtm += ' ';
    } 
    gtm += gtmArr[i];
  }
  return gtm;
}
    
Tools.confirmURL = function(url){
  if (! url){
    return false;
  }
  var conf = confirm('Möchten Sie den Datensatz wirklich löschen?');
  if (conf) {
    return url;
  }
}

Tools.checkRequiredData = function(htmlElement) {
  if (!arguments.length) {
    return false;
  }
  var _dataType = new RegExp(' \\[datatype\\=');
  var _required = new RegExp(' \\[required');
  var _requiredOn = new RegExp(' \\[requiredOn\\]');
  var _requiredOr = new RegExp(' \\[requiredOr\\]');
  var tagName = htmlElement['tagName'];
  tagName = tagName.toLowerCase();
  if (tagName == 'form'){
    for (var i=0; i<htmlElement.elements.length; i++){
      var idRequiredOn = undefined;
      var elemRequiredOn = undefined;
      var idRequiredOr = undefined;
      var elemRequiredOr = undefined;
      if(htmlElement.elements[i].nodeName.toLowerCase() == 'fieldset'){
        continue;
      }
      if (!htmlElement.elements[i].name.length || (!htmlElement.elements[i].className.length || (!htmlElement.elements[i].className.toString().match(_required) && !htmlElement.elements[i].className.toString().match(_dataType))) ){
        continue;
      }
      var requiredElemHasValue = false;
      var dataTypeElemHasDataTypeValue = true;
      //alert(htmlElement.elements[i].title + ' = ' + Tools.checkRequiredElement(htmlElement.elements[i]));
      if (htmlElement.elements[i].className.toString().match(_dataType) && Tools.checkRequiredElement(htmlElement.elements[i])){
        if (! Tools.checkDataTypeElement(htmlElement.elements[i])) {
          dataTypeElemHasDataTypeValue = false;
        }
      }
      if (htmlElement.elements[i].className.toString().match(_requiredOn)){
        var idRequiredOn = htmlElement.elements[i].className.toString().split(_requiredOn)[1].toString().replace(/[\[\]]/gi,'');
        var elemRequiredOn = document.getElementById(idRequiredOn);
        if (Tools.checkRequiredElement(elemRequiredOn)){
          requiredElemHasValue = Tools.checkRequiredElement(htmlElement.elements[i]);
        } else {
          requiredElemHasValue = true;
        }
      } else if (htmlElement.elements[i].className.toString().match(_requiredOr)){
        var idRequiredOr = htmlElement.elements[i].className.toString().split(_requiredOr)[1].toString().replace(/[\[\]]/gi,'');
        var elemRequiredOr = document.getElementById(idRequiredOr);
        if (Tools.checkRequiredElement(elemRequiredOr)){
          requiredElemHasValue = true;
        } else {
          requiredElemHasValue = Tools.checkRequiredElement(htmlElement.elements[i]);
        }
      } else if (htmlElement.elements[i].className.toString().match(_required)){
        requiredElemHasValue = Tools.checkRequiredElement(htmlElement.elements[i]);
      } else {
        requiredElemHasValue = true;
      }
      if (!requiredElemHasValue){
        var shownElemName = htmlElement.elements[i].name;
        if (htmlElement.elements[i].title){
          shownElemName = htmlElement.elements[i].title;
        }
        if (elemRequiredOr != undefined){
          var shownElemNameOr = elemRequiredOr.name;
          if (elemRequiredOr.title){
            shownElemNameOr = elemRequiredOr.title;
          }
          alert('Bitte füllen Sie das Feld >>'+ shownElemName +'<< oder >>'+ shownElemNameOr +'<< aus!');
        } else {
          alert('Bitte füllen Sie das Feld >>'+ shownElemName +'<< aus!');
        }
        if (htmlElement.elements[i].type != 'hidden') {
          htmlElement.elements[i].focus();
        }
        return false;
      }
      if (!dataTypeElemHasDataTypeValue){
        var shownElemName = htmlElement.elements[i].name;
        if (htmlElement.elements[i].title){
          shownElemName = htmlElement.elements[i].title;
        }
        if (htmlElement.elements[i].type != 'hidden') {
          htmlElement.elements[i].focus();
        }
        return false;
      }
    }
    return true;
  }
}

Tools.checkRequiredDataFormFragment = function(htmlElement, elem) {
  if (arguments.length != 2) {
    return false;
  }
  var _dataType = new RegExp(' \\[datatype\\=');
  var _required = new RegExp(' \\[required');
  var _requiredOn = new RegExp(' \\[requiredOn\\]');
  var _requiredOr = new RegExp(' \\[requiredOr\\]');
  var tagName = htmlElement['tagName'];
  tagName = tagName.toLowerCase();
  if (tagName == 'form'){
    for (var i=0; i<htmlElement.elements.length; i++){
      if(htmlElement.elements[i].nodeName.toLowerCase() == 'fieldset'){
        continue;
      }
      if (!htmlElement.elements[i].name.length || (!htmlElement.elements[i].className.length || (!htmlElement.elements[i].className.toString().match(_required) && !htmlElement.elements[i].className.toString().match(_dataType))) ){
        continue;
      }
      if (! Tools.isChildOfElement(elem, htmlElement.elements[i])) {
        continue;
      }
      var requiredElemHasValue = false;
      var dataTypeElemHasDataTypeValue = true;
      if (htmlElement.elements[i].className.toString().match(_dataType)){
        if (! Tools.checkDataTypeElement(htmlElement.elements[i])) {
          dataTypeElemHasDataTypeValue = false;
        }
      }
      if (htmlElement.elements[i].className.toString().match(_requiredOn)){
        var idRequiredOn = htmlElement.elements[i].className.toString().split(_requiredOn)[1].toString().replace(/[\[\]]/gi,'');
        var elemRequiredOn = document.getElementById(idRequiredOn);
        if (Tools.checkRequiredElement(elemRequiredOn)){
          requiredElemHasValue = Tools.checkRequiredElement(htmlElement.elements[i]);
        } else {
          requiredElemHasValue = true;
        }
      } else if (htmlElement.elements[i].className.toString().match(_requiredOr)){
        var idRequiredOr = htmlElement.elements[i].className.toString().split(_requiredOr)[1].toString().replace(/[\[\]]/gi,'');
        var elemRequiredOr = document.getElementById(idRequiredOr);
        if (Tools.checkRequiredElement(elemRequiredOr)){
          requiredElemHasValue = true;
        } else {
          requiredElemHasValue = Tools.checkRequiredElement(htmlElement.elements[i]);
        }
      } else {
        requiredElemHasValue = Tools.checkRequiredElement(htmlElement.elements[i]);
      }
      if (!requiredElemHasValue){
        var shownElemName = htmlElement.elements[i].name;
        if (htmlElement.elements[i].title){
          shownElemName = htmlElement.elements[i].title;
        }
        if (elemRequiredOr != undefined){
          var shownElemNameOr = elemRequiredOr.name;
          if (elemRequiredOr.title){
            shownElemNameOr = elemRequiredOr.title;
          }
          alert('Bitte füllen Sie das Feld >>'+ shownElemName +'<< oder >>'+ shownElemNameOr +'<< aus!');
        } else {
          alert('Bitte füllen Sie das Feld >>'+ shownElemName +'<< aus!');
        }
        if (htmlElement.elements[i].type != 'hidden') {
          htmlElement.elements[i].focus();
        }
        return false;
      }
      if (!dataTypeElemHasDataTypeValue){
        var shownElemName = htmlElement.elements[i].name;
        if (htmlElement.elements[i].title){
          shownElemName = htmlElement.elements[i].title;
        }
        if (htmlElement.elements[i].type != 'hidden') {
          htmlElement.elements[i].focus();
        }
        return false;
      }
    }
    return true;
  }
}

Tools.isChildOfElement = function(parentElem, childElem) {
  if (arguments.length != 2) {
    return false;
  }
  var nextElem = childElem;
  while (nextElem && nextElem.nodeName.toLowerCase() != 'body'){
    if (nextElem == parentElem){
      return true;
    }
    nextElem = nextElem.parentNode;
  }
  return false;
}

Tools.checkDataTypeElement = function(elem) {
  if (!arguments.length) {
    return false;
  }
  if (elem == undefined){
    return false;
  }
  var _dateTypeDE = new RegExp(' \\[datatype\\=Date\\_DE\\]');
  var _dateTypeCMS = new RegExp(' \\[datatype\\=Date\\_CMS\\]');
  var _dateTypeMail = new RegExp(' \\[datatype\\=Mail\\]');
  var _dateTypeLedgerNr = new RegExp(' \\[datatype\\=LedgerNr\\]');
  var _datePLZDE = new RegExp(' \\[datatype\\=PLZ_DE\\]');
  var _dateURL = new RegExp(' \\[datatype\\=URL\\]');
  var _value = '';
  if (elem.type == 'select-one'){
    if (elem.selectedIndex < 0){
      return false;
    }
    _value = Tools.stripSpace(elem.options[elem.selectedIndex].value);
  } else if (elem.type == 'select-multiple'){
    for (var ii=0; ii<elem.options.length; ii++){
      if (elem.options[ii].selected){
        _value += Tools.stripSpace(elem.options[ii].value);
      }
    }
  } else if (elem.type == 'radio'){
    if (elem.length){
      for (var ii=0; ii<elem.length; ii++){
        if (elem[ii].checked){
          _value += Tools.stripSpace(elem[ii].value);
        }
      }
    } else {
      if (elem.checked){
        _value = Tools.stripSpace(elem.value);
      }
    }
  } else if (elem.type == 'checkbox'){
    if (elem.length){
      for (var ii=0; ii<elem.length; ii++){
        if (elem[ii].checked){
          _value += Tools.stripSpace(elem[ii].value);
        }
      }
    } else {
      if (elem.checked){
        _value = Tools.stripSpace(elem.value);
      }
    }
  } else {
    _value = Tools.stripSpace(elem.value);
  }
  if (! _value.length){
    return true;
  }
  if (elem.className.toString().match(_dateTypeDE)){
    return Tools.validateDateFormat(_value, 'DE');
  }
  if (elem.className.toString().match(_dateTypeCMS)){
    return Tools.validateDateFormat(_value, 'CMS');
  }
  if (elem.className.toString().match(_dateTypeMail)){
    return Tools.validateMailFormat(_value);
  }
  if (elem.className.toString().match(_dateTypeLedgerNr)){
    return Tools.validateLedgerNumber(_value);
  }
  if (elem.className.toString().match(_datePLZDE)){
    return Tools.validatePLZ(_value, 'DE');
  }
  if (elem.className.toString().match(_dateURL)){
    return Tools.validateURLFormat(_value);
  }
  return true;
}

Tools.validatePLZ = function(value, lang) {
  if (! arguments.length) {
    return;
  }
  if (! lang){
    lang = 'DE';
  }
  if (lang == 'DE'){
    if (! value.match(/^(\D\-)?(\d\d\d\d\d)$/)) {
      alert('Bitte geben Sie eine fünfstellige Zahl ein!\n');
      return false;
    }
  } else if (! value.match(/^(\d\d\d\d\d)$/)) {
    alert('Bitte geben Sie eine fünfstellige Zahl ein!\n');
    return false;
  }
  return true;
}

Tools.validateLedgerNumber = function(value) {
  if (! arguments.length) {
    return;
  }
  if (! value.match(/^(\d\d?\d?\d?\d?\d?\d?\d?\d?\d?)$/)) {
    alert('Bitte geben Sie eine Zahl mit 1 - 10 Stellen ein!');
    return false;
  }
  return true;
}

Tools.validateDateFormat = function(value, variant) {
  if (! arguments.length) {
    return;
  }
  if (variant == 'CMS'){
    if (! value.match(/^(\d\d\d\d)\-(\d\d)\-(\d\d)$/)) {
      alert('Bitte geben Sie das Datum im Format jjjj-mm-dd an!');
      return false;
    }
  } else {
    if (! value.match(/^(\d\d?)\.(\d\d?)\.(\d\d\d\d)$/)) {
      alert('Bitte geben Sie das Datum im Format tt.mm.jjjj an!');
      return false;
    }
  }
  return true;
}

Tools.validateMailFormat = function(value) {
  if (!arguments.length) {
    return false;
  }
  var regEx = new RegExp('^([a-zA-Z0-9\\-\\.\\_]+)(\\@)([a-zA-Z0-9\\-\\.]+)(\\.)([a-zA-Z]{2,4})$');
  if (! value.match(regEx)){
    alert('Bitte geben Sie eine gültige E-Mail-Adresse an!');
    return false;
  }
  return true;
}

Tools.validateURLFormat = function(value) {
  if (!arguments.length) {
    return false;
  }
  var regEx = new RegExp('^(http:\/\/|https:\/\/|mailto:\/\/|ftp:\/\/|\/)');
  if (! value.match(regEx)){
    alert('Bitte geben Sie eine gültige URL an!\nEine gültige URL muß mit http://, https://, etc. anfangen');
    return false;
  }
  return true;
}

Tools.checkRequiredElement = function(elem) {
  if (!arguments.length) {
    return false;
  }
  if (elem == undefined){
    return false;
  }
  var _multipleRegEx = new RegExp(' \\[multiple\\]');
  var _multiple = false;
  if(elem.className.toString().match(_multipleRegEx)){
    _multiple = true;
  }
  if (_multiple){
    return Tools.checkRequiredElementMultiple(elem);
  }
  return Tools.checkRequiredElementSingle(elem);
}

Tools.checkRequiredElementMultiple = function(elem) {
  if (!arguments.length) {
    return false;
  }
  if (elem == undefined){
    return false;
  }
  var requiredValue = '';
  var arr = document.getElementsByName(elem.name);
  for (var i=0; i<arr.length; i++) {
    var multipleElem = arr[i];
    if (! Tools.checkRequiredElementSingle(multipleElem)){
      continue;
    }
    return true;
  }
  return false;
}

Tools.checkRequiredElementSingle = function(elem) {
  if (!arguments.length) {
    return false;
  }
  if (elem == undefined){
    return false;
  }
  var requiredValue = '';
  if (elem.type == 'select-one'){
    if (elem.selectedIndex < 0){
      return false;
    }
    requiredValue = Tools.stripSpace(elem.options[elem.selectedIndex].value);
  } else if (elem.type == 'select-multiple'){
    for (var ii=0; ii<elem.options.length; ii++){
      if (elem.options[ii].selected){
        requiredValue += Tools.stripSpace(elem.options[ii].value);
      }
    }
  } else if (elem.type == 'radio'){
    if (elem.length){
      for (var ii=0; ii<elem.length; ii++){
        if (elem[ii].checked){
          requiredValue += Tools.stripSpace(elem[ii].value);
        }
      }
    } else {
      if (elem.checked){
        requiredValue = Tools.stripSpace(elem.value);
      }
    }
  } else if (elem.type == 'checkbox'){
    if (elem.length){
      for (var ii=0; ii<elem.length; ii++){
        if (elem[ii].checked){
          requiredValue += Tools.stripSpace(elem[ii].value);
        }
      }
    } else {
      if (elem.checked){
        requiredValue = Tools.stripSpace(elem.value);
      }
    }
  } else {
    requiredValue = Tools.stripSpace(elem.value);
  }
  if (!requiredValue.length){
    return false;
  }
  return true;
}

Tools.resetFormElement = function(elem) {
  if (!arguments.length) {
    return false;
  }
  if (elem == undefined){
    return false;
  }
  var requiredValue = '';
  if (elem.type == 'select-one'){
    elem.options[0].selected = 'selected';
  } else if (elem.type == 'select-multiple'){
    elem.options[0].selected = 'selected';
  } else if (elem.type == 'radio'){
    if (elem.length){
      for (var ii=0; ii<elem.length; ii++){
        elem[ii].checked = false;
      }
    } else {
      elem.checked = false;
    }
  } else if (elem.type == 'checkbox'){
    if (elem.length){
      for (var ii=0; ii<elem.length; ii++){
        elem[ii].checked = false;
      }
    } else {
      elem.checked = false;
    }
  } else {
    elem.value = '';
  }
  return true;
}

Tools.stripSpace = function(attr){
  var result = '';
  if (attr){
    attr = new String(attr);
    result = attr.replace(/^\s+/,'');
    result = result.replace(/\s+$/,'');
  }
  return result;
}

Tools.checkDataSize = function(elem, size) {
  if (!arguments.length) {
    return false;
  }
  var _type = elem.type.toLowerCase();
  var _value = Tools.stripSpace(elem.value);
  if (_type == 'textarea'){
    if (_value.length >= size){
      elem.value = _value.substring(0, size);
    }
  }
}

Tools.validateEmail = function(elem) {
  if (!arguments.length) {
    return false;
  }
  var _value = Tools.stripSpace(elem.value);
  var regEx = new RegExp('^([a-zA-Z0-9\\-\\.\\_]+)(\\@)([a-zA-Z0-9\\-\\.]+)(\\.)([a-zA-Z]{2,4})$');
  if (! _value.match(regEx)){
    alert('Bitte geben Sie eine gültige E-Mail-Adresse an!');
    elem.focus();
  }
}

Tools.validateURL = function(elem) {
  if (!arguments.length) {
    return false;
  }
  var _value = Tools.stripSpace(elem.value);
  var regEx = new RegExp('^(http:\/\/|https:\/\/|mailto:\/\/|ftp:\/\/|\/)');
  if (! _value.match(regEx)){
    alert('Bitte geben Sie eine gültige URL an!\nEine gültige URL muß mit http://, https://, etc. anfangen');
    elem.focus();
  }
}

Tools.openLinkinOpener = function(url) {
  if (!arguments.length) {
    return false;
  }
  var root;
  if (window.opener){
    root = window.opener;
  }
  if (parent.opener){
    root = parent.opener;
  }
  if (parent.top.opener){
    root = parent.top.opener;
  }
  if (! root){
    return true;
  }
  root.location = url;
  root.focus();
  return false;
}

Tools.submitQuichsearch = function(htmlElement) {
  if (!arguments.length) {
    return false;
  }
  var tagName = htmlElement['tagName'];
  tagName = tagName.toLowerCase();
  if (tagName == 'form'){
    var regExp = new RegExp('Stichwort|Stichwort eingeben|Suchwort|Suchwort eingeben|Suchbegriff|Suchbegriff eingeben');
    for (var i=0; i<htmlElement.elements.length; i++){
      var _value = Tools.stripSpace(htmlElement.elements[i].value);
      if(_value.match(regExp)){
        htmlElement.elements[i].value = '';
      }
      if (htmlElement.elements[i].name == 'idrubrik' && (htmlElement.elements[i].value == '1012' || htmlElement.elements[i].value == '1019')){
        htmlElement['_sortierung'].value = 'datum_desc';
      }
    }
    return true;
  }
}

Tools.displayElement = function(idx) {
  if (!arguments.length) {
    return false;
  }
  var elem = document.getElementById(idx);
  if (! elem) {
    return;
  }  
  if (elem.style.display == 'block') {
    elem.style.display = 'none';
    return;
  }
  elem.style.display = 'block';
}

// :::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
  
Tools.getScreenHeight = function() {
  var height = 0;
  if (document.documentElement != undefined && document.documentElement.clientHeight != undefined) {
     height = parseFloat(document.documentElement.clientHeight);
  } else {
     height = parseFloat(window.innerHeight);
  }
  return height;
}   

// :::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::

Tools.getScreenWidth = function() {
  var width = 0;
  if (document.documentElement != undefined && document.documentElement.clientWidth != undefined) {
     width = parseFloat(document.documentElement.clientWidth);
  } else {
     width = parseFloat(window.innerWidth);
  }
  return width;
}

// :::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::

Tools.getScrollPositionTop = function() {
  var pos = 0;
  if (document.documentElement != undefined && document.documentElement.scrollTop != undefined) {
     pos = parseFloat(document.documentElement.scrollTop);
  } else {
     pos = parseFloat(window.pageYOffset);
  }
  return pos;
}

// :::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
  
Tools.getElementWidth = function(elem) {
  width = 0;
  if (!elem){
    return width;
  }
   width = parseFloat(elem.offsetWidth); 
   return width;
}    

// :::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::  
  
Tools.getElementHeight = function(elem) {
  height = 0;
  if (!elem){
    return height;
  }
   height = parseFloat(elem.offsetHeight); 
   return height;
}

// :::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::  

Tools._getDocumentHeight = function() {
  var body = document.getElementsByTagName('body')[0];
  //var innerHeight = GalleryTools._getScreenHeight();
  if (! document.compatMode || document.compatMode=="CSS1Compat") {
    return Math.max(body.offsetHeight, document.documentElement.clientHeight, document.documentElement.scrollHeight);
  }
  return Math.max(body.scrollHeight, body.clientHeight);
} 

// :::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::  

Tools._getDocumentWidth = function() {
  var body = document.getElementsByTagName('body')[0];
  //var innerHeight = GalleryTools._getScreenHeight();
  if (! document.compatMode || document.compatMode=="CSS1Compat") {
    return Math.max(body.offsetWidth, document.documentElement.clientWidth, document.documentElement.scrollWidth);
  }
  return Math.max(body.scrollWidth, body.clientWidth);
} 


/////////////////////////////////////////////////////////////////////////////////////////////////////////////