var fieldstocheck = new Array();
    fieldnames = new Array();

function checkform() {
  for (i=0; i < fieldstocheck.length; i++) {
    if (eval("document.subscribeform.elements['"+fieldstocheck[i]+"'].value") == "") {
      alert("Bitte geben Sie ein "+fieldnames[i]);
      eval("document.subscribeform.elements['"+fieldstocheck[i]+"'].focus()");
      return false;
    }
  }

  if(! compareEmail())
  {
    alert("Email Addresses you entered do not match");
    return false;
  }
  return true;
}


function addFieldToCheck(value,name) {
  fieldstocheck[fieldstocheck.length] = value;
  fieldnames[fieldnames.length] = name;
}

function compareEmail()
{
  return (document.subscribeform.elements["email"].value == document.subscribeform.elements["emailconfirm"].value);
}


addFieldToCheck("email","E-Mail");
addFieldToCheck("emailconfirm","Confirm email");

/*document.getElementById('subscribeform').onsubmit = function(){
	checkform();
}*/
var gift = document.getElementById('Geschenkabo');
var abo = document.getElementById('Abo');
if(gift){

	var fieldset_gift = document.getElementById('abo-gift');
	gift.onclick = function(event){
		fieldset_gift.style.display = 'block';
	}
	abo.onclick = function(event){
		fieldset_gift.style.display = 'none';
	}
	
	
}

/* detect IE 6 activeX */


function isAjaxEnabled() {

	if (window.XMLHttpRequest) {// IE 7, mozilla, safari, opera 9
		return true;
	} else {// IE < 7
		try {
        	//var test = new XMLHttpRequest();
        	var test = new ActiveXObject("Msxml2.XMLHTTP");
        	return true;

    	} catch (ex) {
        	return false;

    	}	
	} 
} 

if(document.getElementById('alternate_abo')){
	if(!isAjaxEnabled()){
		enable_alternate();
	}
	//alert(isAjaxEnabled());
}

function enable_alternate(){
	document.getElementById('alternate_abo').style.display = 'block';
	document.getElementById('contact-data').style.display = 'none';
	document.getElementById('submit_abo').style.display = 'none';
}