function initSubscription()
{
    $("#email").focus(function()
    {
        $("#email").val("");
    });
}

function validateSubscription()
{
    //validates the form
    var isValid = $("#subscribeNewsletter").validate(
	{
	    errorElement: "span",
	    errorClass: "input-validation-error",

	    rules:
		{
		    email:
		    {
		        required: true,
		        email: true
		    }
		},
	    messages:
		{
		    email: ""
		}
    }).form();
    
    if (isValid == true) showLoading();
    else
    {
        showErrorMessage("Ungültige E-Mail Adresse");
    }
    return isValid;
}

function subscribeSucceeded()
{
    hideLoading();
    showSuccessMessage();
}