ÿþ/**

 * Eigene Validation für das Captcha.

 */

function addValidations() {

	Validation.add('validate-selection-accept-first', 'Keine gültige Auswahl getroffen.', function(v,elm){

		return !Validation.get('IsEmpty').test(v);

	});

			

	Validation.add('validate-captcha', 'Captcha ungültig', function(v, elem) {

		return isCaptchaValid(elem);

	})

	

	Validation.add('validate-confirm-email', 'E-Mail zur Bestätigung ist nicht identisch!', function(v, elem) {

		return isEmailIdentical(elem);

	})

	

	Validation.add('required-drop-down', 'Drop Down Feld ist nicht ausgewählt.', function(v, elem) {

		return isDropDownSelected(elem);

	})

} 



function isEmailIdentical(confirmField) {

  var emailValue = confirmField.id.replace(/confirm/, "");

  return confirmField.value == $F(emailValue);

}



function isDropDownSelected(dropDownField) {

  return $F(dropDownField.id) != dropDownField.options[0].text;

}



function extractPath(path) {

  return path.substring(0, path.lastIndexOf("/"));

}



function isCaptchaValid(field) {

	var valid = false;

	

	var currentPath = extractPath(location.pathname);

	var diff = currentPath.replace(extractPath(weblicaScriptPath), "");

	if (diff == "/") diff = "";

	var URLToCaptchaScript = location.protocol + "//" + location.host + diff + "/_captcha/validCaptcha.php";



	new Ajax.Request(URLToCaptchaScript, {

        asynchronous: false,

        encoding: 'UTF-8',

        method: 'post',

        parameters: 'captcha=' + field.value,

        onSuccess: function(transport) {

    	    valid = transport.responseText == 'true';

        }

      });

  return valid;

}



function connectToForm() {

  var forms = $$('form.abstractForm');

	for (var i = 0; i < forms.length; ++i) {

		var form = forms[i];

    new Validation(form.id, {immediate:true});

	}

}



function refreshCaptcha() {

  var elems = $$('img[class="captchaImg"]'); // Dieser String plus Img Tag muss gleich sein wie die Konstante aus der Klasse GenerateHtmlVisitor im Formular-Absatz

  var random = Math.round(Math.random() * 100000);

  for (var i = 0; i < elems.length; ++i) {

    var source = elems[i].src.split("?set=");

    elems[i].src = source[0] + "?set=" + random;

  }

}



function observeCaptchaRenew() {

  var links = $$('a[name="captcha"]'); // Dieser String muss gleich sein wie die Konstante aus der Klasse GenerateHtmlVisitor im Formular-Absatz

  for(var i = 0; i < links.length; ++i){ 

    links[i].onclick = function(){

      refreshCaptcha();

      return false;

    }

  }

}



function checkTextAreaLen(field, maxlength) {

  if (field.value.length > maxlength) {

    field.value = field.value.substring(0, maxlength);

  }

}



window.onload = function() {

	addValidations();

	connectToForm();

	observeCaptchaRenew();

}