function validate(form,lang) {
	var quantity = form.quantity;
	if (!quantity.value.length || !(parseInt(quantity.value)>0)){
		if (lang=="is") alert("Vantar aš setja inn magn.");
		else alert("Enter a valid quantity.");
		quantity.focus();
		return false;
	}
	quantity.value = parseInt(quantity.value);
	if (lang=="is") return confirm ('Viltu setja vöruna ķ körfuna?');
	else return confirm ('Do you want to add this product to shopcart?');
}

function openWin(url) {
	self.name = 'opener';
	window.open(url, 'url', "toolbar=0,location=0,directories=0,status=0,menubar=no,scrollbars=yes,resizable=no,width=700,height=580");
}