MVC 4 post method waitng progress bar usin actiom method

Question

Iam having strongly typed view one post method.

@using.beginform("Save","TestController")

{

.................

.................

<button type=submit>Save</button>

}

Public class TestController

{

[httppost]

public save(model testmodel)

{

calling wcf service to save the model data

retern view("Index");

}

}

In the above scenario some time it is taking time to save the data through the wcf service in this case i want to dispaly the waiting progress bar till the save action completes.

I have tried in some ways where i dont have strongly typed model and am calling the action method through ajax call there i could able to achieve this progress bar.

But how can we display the waiting progress bar on form submit method.

Is there any way to maintain a unique waiting progress bar window in <b>application level</b> that we can enable automatically whenever the application take some time.