function validate(){
	var em = document.getElementById("email");
	if (em)
	{
		em = em.value;
		if (em.indexOf('@') < 0 || em.indexOf('.')< 0 || em.indexOf('@') > em.lastIndexOf('.')) {
			alert('Lūdzu, ievadiet korektu e-pasta adresi!');
			return false;
		}
	}

	if (document.getElementById("agree").checked == false) {
		alert('Jums jāapstiprina sava piekrišana loterijas noteikumiem!');
		return false;
	}
	return true;
}

function forceNum(elem){
	elem.value = elem.value.replace(/[^0-9\+\s]/g,'');
}

function flip(){

	if(document.getElementById('winner_determining').selectedIndex < 2){
		document.getElementById('frequency').disabled = true;
		document.getElementById('amount').disabled = true;
	} else {
		document.getElementById('frequency').disabled = false;
		document.getElementById('amount').disabled = false;

	}
	if(document.getElementById('frequency').selectedIndex < 2){
		document.getElementById('amount').disabled = true;
	} else if(document.getElementById('winner_determining').selectedIndex > 1) {
		document.getElementById('amount').disabled = false;
	}

}

function validate2(){
	if(document.getElementById('name').value.length < 1){
		alert('Lūdzu, ievadiet savu vārdu!');
		return false;
	}
	if(document.getElementById('company').value.length < 1){
		alert('Lūdzu, ievadiet uzņēmumu!');
		return false;
	}
	if(document.getElementById('phone').value.length < 1){
		alert('Lūdzu, ievadiet savu telefona numuru!');
		return false;
	}
	var em = document.getElementById("email").value;
	if (em.indexOf('@') < 0 || em.indexOf('.')< 0 || em.indexOf('@') > em.lastIndexOf('.')) {
		alert('Lūdzu, ievadiet korektu e-pasta adresi!');
		return false;
	}

	return true;
}
function showOther(el){
	if (el.selectedIndex == 4) {
		document.getElementById('rules_other').style.display = 'block';
	} else {
		document.getElementById('rules_other').style.display = 'none';
	}
}

function recheck(el, msg){
	total = 0;
	tr = el.parentNode;
	cb = tr.getElementsByTagName('input');
	for(i = 0; i < cb.length; i++){
		if(cb[i].checked == true){
			total++;
		}
	}
	if(total > 2){
		alert(msg);
		el.checked = false;
	}
}
function validate3(){
	for(i = 1; i < 11; i++){
		if(!isValidGroup(i)){
			alert('Lūdzu, atbildiet uz ' + i + '. jautājumu!');
			return false;
		}
	}
	return true;
}
function isValidGroup(num){

	tags = document.getElementById('g' + num).getElementsByTagName('input');
	for(ii = 0; ii < tags.length; ii++){
		if(tags[ii].selected == true || tags[ii].checked == true){
			return true;
		}
	}
	return false;
}