Disallow Twitter Bootstrap modal window from closing

Just set the backdrop property to 'static'.

$('#myModal').modal({
  backdrop: 'static',
  keyboard: true
})

You may also want to set the keyboard property to false because that prevents the modal from being closed by pressing the Esc key on the keyboard.

$('#myModal').modal({
  backdrop: 'static',
  keyboard: false
})

myModal is the ID of the div that contains your modal content.

I believe you want to set the backdrop value to static. If you want to avoid the window to close when using the Esc key, you have to set another value.

Example:

<a data-controls-modal="your_div_id"
   data-backdrop="static"
   data-keyboard="false"
   href="#">

OR if you are using JavaScript:

$('#myModal').modal({
  backdrop: 'static',
  keyboard: false
});