Hi,hear is the step:

1. First,use jQuery bind an event for an element,any element, any event.

2. Then use a variable save the element in memory.

3. Then remove the element form the DOM tree.

4. Finally, add the element to the DOM tree.

And here,the event that I bind in my first step is gone.

I don't know it's a bug or it's inevitable in jQuery.

Hear is my test code:

var tt = $( 'button' ).click( function() {

alert( '13242' );

} );

tt.remove();

$( 'body' ).append( tt );

Thank you very much!