var ok = 1;

function changeLeftDiv(status) {
	var leftOld = document.getElementById('main-left').innerHTML;
	document.getElementById('main-left').innerHTML = document.getElementById('main-left-hidden').innerHTML;
	document.getElementById('main-left-hidden').innerHTML = leftOld;
	if (status == 1) {
		ok = 0;
	}
	else {
		ok = 1;
	}
}

function CheckSS() {
	var regExp = /^([a-zA-Z0-9_\.\-])+\@(([a-zA-Z0-9\-])+\.)+([a-zA-Z0-9]{2,4})+$/;
	if (!regExp.test(document.getElementById('Email').value)) {
		alert('You have to enter a valid email address.');
		document.getElementById('Email').focus();
		return false;
	}
	if (document.getElementById('firstName').value == '') {
		alert('You have to enter your first name.')
		document.getElementById('firstName').focus();
		return false;
	}
	if (document.getElementById('lastName').value == '') {
		alert('You have to enter your last name.')
		document.getElementById('lastName').focus();
		return false;
	}
	return true;
}


function calcamt() {
		var priceunit=10;
    var whole = "" + Math.round(parseFloat(document.getElementById('quantity').value) * priceunit * Math.pow(10, 2)); 
    var decPoint = whole.length - 2;
    if(decPoint != 0) {
		result = whole.substring(0, decPoint);
        result += ".";
        result += whole.substring(decPoint, whole.length);
    }
    else {
		result = whole;
    }
	document.getElementById('Amount').value = result;
}
             
function validateBuyForm() {
	if (ok == 0) {
		ok = 1;
		return false;
	}
 	if (document.getElementById('quantity').value == 0) {
 	 	alert('You have to specify quantity of tickets.')
 	 	document.getElementById('quantity').focus();
		return false;
	}
	var regExp = /^([a-zA-Z0-9_\.\-])+\@(([a-zA-Z0-9\-])+\.)+([a-zA-Z0-9]{2,4})+$/;
	if (!regExp.test(document.getElementById('CustomerEmail').value)) {
		alert('You have to enter a valid email address.');
		document.getElementById('CustomerEmail').focus();
		return false;
	}
	if (document.getElementById('CustomerName').value == '') {
		alert('You have to enter your name');
		document.getElementById('CustomerName').focus();
		return false;
	}
	return true;
}