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function submitData()
                {
                //       request options
                        var ret;
                        var opt = {
                                method:'post',
                                postBody:'first_name='+document.getElementById("first_name").value+'&last_name='+document.getElementById("last_name").value+'&email_ad$                                onSuccess: function(t) {
                                        // check on success
                                        checkSubmit(t);
                                        return (t);
                                        //alert ("hola"+t.responseText);
                                },
                                onLoading: function() {
                                        // Disable login button with message
                                        document.getElementById('submit_bt_pledge').value = '> SUBMITTING...';
                                        document.getElementById('submit_bt_pledge').disabled = true;
                                }
                        }
                //      Send request
                        new Ajax.Request('/files/ajax.php', opt);
                }