maskedinput

Try this – http://jsfiddle.net/dKRGE/3/ $(“#phone”).mask(“(99) 9999?9-9999”); $(“#phone”).on(“blur”, function() { var last = $(this).val().substr( $(this).val().indexOf(“-“) + 1 ); if( last.length == 3 ) { var move = $(this).val().substr( $(this).val().indexOf(“-“) – 1, 1 ); var lastfour = move + last; var first = $(this).val().substr( 0, 9 ); $(this).val( first + ‘-‘ + lastfour ); } });