var imgnum = 0;
var aktiv;

function lotterystart(){
	var queryString = window.top.location.search;
	if(queryString.indexOf('success=true') >= 0){
		document.getElementById("info").style.display='block';
	}
}

function checkLotteryInput(){
	document.getElementById("info").style.display='none';
	answerExists = false;
	for(i=1; i<=3; i++){
		if( document.getElementById("answer"+i).checked ){
			answerExists = true;
		}
	}
	if( !answerExists ){
		document.getElementById("error").style.display='block';
		document.getElementById("error").innerHTML='Bitte wählen Sie eine Antwort aus!';
		return;
	}
	if( !checkEmail(document.getElementById("email").value) ){
		document.getElementById("error").style.display='block';
		document.getElementById("error").innerHTML='Bitte geben Sie eine gültige Email-Adresse ein!<br>';
		return;
	}
	
	document.getElementById("lotteryForm").submit();
}

function checkEmail(value) {
	if (/^\w+([\.-]?\w+)*@\w+([\.-]?\w+)*(\.\w{2,3})+$/.test(value)){
		return true;
	} else {
		return false;
	}
}

function startpageload(){
}