// JavaScript Document
var mandatory_fields = Array();

function checkEmail(obj)
{
	if (obj.value=='')
		return false;
	var emailReg = "^[a-zA-Z0-9._-]+@[a-zA-Z0-9.-]+\.[a-zA-Z]{2,4}$";
	var regex = new RegExp(emailReg);
	if (!regex.test(obj.value))
	{
		alert("Please enter a valid email");
		obj.value = '';
		return false;
	}
	return true;
}


function checkSignUp(e, obj)
{
	var keynum;
	var keychar;
	var numcheck;
	
	if(window.event) // IE
	{
		keynum = e.keyCode;
	}
	else if(e.which) // Netscape/Firefox/Opera
	{
		keynum = e.which;
	}
	//keychar = String.fromCharCode(keynum);
	//numcheck = /\d/;
	//return !numcheck.test(keychar);
	
	if (keynum == 13)
	{
		if (!checkEmail(obj))
			return false;
		self.location.href = '/subscribe.php?email='+obj.value;
		return false;
	}
	else
		return true;
}

function signUp()
{
	var obj = document.getElementById('signup_email');
	if (!checkEmail(obj))
		return false;
	self.location.href = '/subscribe.php?email='+obj.value;
}