function isInt(x) {
   var y=parseInt(x);
   if (isNaN(y)) return false;
   return x==y && x.toString()==y.toString();
 } 
 
function updatePrice() {
	
	
	var newprice = 0;
	
	if (!isInt($('qty').value)) {
		$('qty').value = 1;
		$('price').set('text', number_format(initprice, 2, ',', '.'));
		return;
	}
	
	myqty = $('qty').value;
	newprice = initprice * myqty;
	
	if (newprice == 0) {
		newprice = initprice;
		$('price').set('text', number_format(initprice, 2, ',', '.'));
	}
	else
	{
		$('price').set('text', number_format(newprice, 2, ',', '.'));
	}
	return false;
}

function number_format(number, decimals, dec_point, thousands_sep) {
    // Formats a number with grouped thousands  
    // 
    // version: 1003.2411
    // discuss at: http://phpjs.org/functions/number_format
    // +   original by: Jonas Raoni Soares Silva (http://www.jsfromhell.com)
    // +   improved by: Kevin van Zonneveld (http://kevin.vanzonneveld.net)
    // +     bugfix by: Michael White (http://getsprink.com)
    // +     bugfix by: Benjamin Lupton
    // +     bugfix by: Allan Jensen (http://www.winternet.no)
    // +    revised by: Jonas Raoni Soares Silva (http://www.jsfromhell.com)
    // +     bugfix by: Howard Yeend
    // +    revised by: Luke Smith (http://lucassmith.name)
    // +     bugfix by: Diogo Resende
    // +     bugfix by: Rival
    // +      input by: Kheang Hok Chin (http://www.distantia.ca/)
    // +   improved by: davook
    // +   improved by: Brett Zamir (http://brett-zamir.me)
    // +      input by: Jay Klehr
    // +   improved by: Brett Zamir (http://brett-zamir.me)
    // +      input by: Amir Habibi (http://www.residence-mixte.com/)
    // +     bugfix by: Brett Zamir (http://brett-zamir.me)
    // +   improved by: Theriault
    // *     example 1: number_format(1234.56);
    // *     returns 1: '1,235'
    // *     example 2: number_format(1234.56, 2, ',', ' ');
    // *     returns 2: '1 234,56'
    // *     example 3: number_format(1234.5678, 2, '.', '');
    // *     returns 3: '1234.57'
    // *     example 4: number_format(67, 2, ',', '.');
    // *     returns 4: '67,00'
    // *     example 5: number_format(1000);
    // *     returns 5: '1,000'
    // *     example 6: number_format(67.311, 2);
    // *     returns 6: '67.31'
    // *     example 7: number_format(1000.55, 1);
    // *     returns 7: '1,000.6'
    // *     example 8: number_format(67000, 5, ',', '.');
    // *     returns 8: '67.000,00000'
    // *     example 9: number_format(0.9, 0);
    // *     returns 9: '1'
    // *    example 10: number_format('1.20', 2);
    // *    returns 10: '1.20'
    // *    example 11: number_format('1.20', 4);
    // *    returns 11: '1.2000'
    // *    example 12: number_format('1.2000', 3);
    // *    returns 12: '1.200'
    var n = !isFinite(+number) ? 0 : +number, 
        prec = !isFinite(+decimals) ? 0 : Math.abs(decimals),
        sep = (typeof thousands_sep === 'undefined') ? ',' : thousands_sep,
        dec = (typeof dec_point === 'undefined') ? '.' : dec_point,
        s = '',
        toFixedFix = function (n, prec) {
            var k = Math.pow(10, prec);
            return '' + Math.round(n * k) / k;
        };
    // Fix for IE parseFloat(0.55).toFixed(0) = 0;
    s = (prec ? toFixedFix(n, prec) : '' + Math.round(n)).split('.');
    if (s[0].length > 3) {
        s[0] = s[0].replace(/\B(?=(?:\d{3})+(?!\d))/g, sep);
    }
    if ((s[1] || '').length < prec) {
        s[1] = s[1] || '';
        s[1] += new Array(prec - s[1].length + 1).join('0');
    }
    return s.join(dec);
}

function SubmitForm() {
	
	var validatefields = new Array('firstname', 'lastname', 'street', 'zip', 'town', 'phone', 'email');
	var errcnt = 0;
	
	$each(validatefields, function(field, index){
		if($(field).value.length < 3) {
			$(field).setStyle('border', '1px solid red');
			errcnt++;
		}
		else
		{
			$(field).setStyle('border', '1px solid #ccc');
		}
	});
	
	if($('qty').value < 1 || isNaN($('qty').value)) {
		$('qty').setStyle('border', '1px solid red');
		errcnt++;
	}
	else
	{
	
		$('qty').setStyle('border', '1px solid #ccc');
	}
	if(!$('agb').checked) {
		errcnt++;
		$('agbtext').setStyle('color', 'red');
	}
	else
	{
		$('agbtext').setStyle('color', '#333');	
	}
	
	
	
	if (errcnt < 1) {
		if ($('selfpickup').checked) {
			mydeliverytype = "Selbstabholung";
		} else {
			mydeliverytype = "Lieferung";	
		}
		var myRequest = new Request({method: 'post', url: '/modules/mod_websaleviewer/ajax-send-contactform.php'});
			myRequest.send({
				 data: {
				 	'item': $('item').value,
				 	'qty': $('qty').value,
				 	'price': $('price').get('text'),
					'firstname': $('firstname').value,
					'lastname': $('lastname').value,
					'street': $('street').value,
					'zip': $('zip').value,
					'town': $('town').value,
					'phone': $('phone').value,
					'email': $('email').value,
					'deliverytype': mydeliverytype,
					'deliveryaddress': $('deliveryaddress').value,
					'comments': $('comments').value
				 }
			});
		SqueezeBox.close();
		AlertBox.info(lng_mod_contactform_thankyou);
	}
}