$(document).ready(function() 
{   
    $("#form_signup").submit(function () {
        $("#signup_processing").html("<img src=\"/img/site/ajax-loader.gif\" /> One moment...");
        $("#signup_submit").attr("disabled","disabled");
        $("#signup_processing").fadeIn("slow",function(data){
            $.post('ajax_signup.aspx',{signup_email:$('#signup_email').val()},function(data){
            
                var callbackArray = data.split("#");
                if(callbackArray[0] == "0")
                {
                    //error
                    $("#signup_processing").html("<img src=\"/img/site/cross.gif\" /> " + callbackArray[1]);
                    $("#signup_submit").attr("disabled","");
                }
                else
                {
                    //success
                    $("#signup_processing").html("<img src=\"/img/site/tick.gif\" /> Signup successful!");
                }
                
            });
        });
        return false;
    });
});