[jQuery] Ajax only works once

[jQuery] Ajax only works once

I have form elements that update an HTML table within a DIV. It's an invoices application and the each detail element (invoice items) on the invoice has a input button with that when clicked on it deletes that item.
The problem is that it works only once. I click on the button, the item is deleted, the div is updated with the new HTML. But afterwards all of the input buttons that delete the items stop working. I click on them and nothing happens. I have to refresh the web page to get that functionality again.
Why this behaviour?<br clear="all">
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**** Ivan Quintero
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