I wrote a javascript function to validate phone numbers, and included it in a simple HTML file so numbers can be submitted through a text field, then used jquery to print on the same page the results of the validation.

I used replaceWith() in the function to print the results. However after the first click the function no longer worked. When I changed the replaceWith statement with 2 jquery calls, an empty() & append(), numbers could be submitted repeatedly. That would lead me to believe the replaceWith is causing some kind of problem.