$(document).ready(function(){
	$("#newsletterSubscribe").bind("submit", function(){
		var email = $("#newsletterSubscribeEmail").attr("value");
		if (email == '' || email == 'Enter your email address' || email == ' ') return false;
		if (!isEmail(email)) {
			alert("The email address entered does not appear to be valid.  Please check the email address and try again.");
			return false;
		}
		$('#newsletterSubscribe input[type="image"]').eq(0).attr("src", "images/loading.gif");
		$.get("api.php", {action: "subscribe", email: $("#newsletterSubscribeEmail").attr("value")}, function(data){
			$("#newsletterSubscribeMessage").html(data);
			$('#newsletterSubscribe input[type="image"]').eq(0).attr("src", "images/buttons/go.gif");
		});
		return false;
	});
});

function isEmail(str) {
	// are regular expressions supported?
	var supported = 0;
	if (window.RegExp) {
		var tempStr = "a";
		var tempReg = new RegExp(tempStr);
		if (tempReg.test(tempStr)) supported = 1;
	}
	if (!supported) return (str.indexOf(".") > 2) && (str.indexOf("@") > 0);
	var r1 = new RegExp("(@.*@)|(\\.\\.)|(@\\.)|(^\\.)");
	var r2 = new RegExp("^.+\\@(\\[?)[a-zA-Z0-9\\-\\.]+\\.([a-zA-Z]{2,3}|[0-9]{1,3})(\\]?)$");
	return (!r1.test(str) && r2.test(str));
}