function isEmail(string) {
    if (string.search(/^\w+((-\w+)|(\.\w+))*\@[A-Za-z0-9]+((\.|-)[A-Za-z0-9]+)*\.[A-Za-z0-9]+$/) != -1)
        return true;
    else
        return false;
}

function validate_me() {
	if(document.download.email.value.length > 0)
	{
		if(isEmail(document.download.email.value) == true)
		{
			document.download.submit();
			return true;
		}
		else
		{
			alert("The Email Address is invalid. Please enter a single valid email address.");
			return false;
		}
	}
	else
	{
		alert("An Email Address is required.");
		return false;
	}
}