|   $(document).ready(function() {
    $("#SubmitButton").click(function(event){
     event.preventDefault();
        //elements
        alert('clicked');
        var progressbox     = $('#progressbox');
        var progressbar     = $('#progressbar');
        var statustxt       = $('#statustxt');
        var submitbutton    = $("#SubmitButton");
        var myform          = $("#UploadForm");
        var output          = $("#output");
        var completed       = '0%';
                $(myform).ajaxForm({
                    beforeSend: function() { //brfore sending form
                        submitbutton.attr('disabled', ''); // disable upload button
                        statustxt.empty();
                        progressbox.slideDown(); //show progressbar
                        progressbar.width(completed); //initial value 0% of progressbar
                        statustxt.html(completed); //set status text
                        statustxt.css('color','#000'); //initial color of status text
                    },
                    uploadProgress: function(event, position, total, percentComplete) { //on progress
                        progressbar.width(percentComplete + '%') //update progressbar percent complete
                        statustxt.html(percentComplete + '%'); //update status text
                        if(percentComplete>50)
                            {
                                statustxt.css('color','#fff'); //change status text to white after 50%
                            }
                        },
                    complete: function(response) { // on complete
                        output.html(response.responseText); //update element with received data
                        myform.resetForm();  // reset form
                        submitbutton.removeAttr('disabled'); //enable submit button
                        progressbox.slideUp(); // hide progressbar
                    }
            });
            });
        });
var WIUpload = {};
 |