here is my code

$("#product1 :checkbox").click(function(){
  $(this)
    .closest('tr') // find the parent row
      .find(":input[type='text']") // find text elements in that row
        .attr('disabled',false).toggleClass('disabled') // enable them
        .end() // go back to the row
      .siblings() // get its siblings
        .find(":input[type='text']") // find text elements in those rows
        .attr('disabled',true).removeClass('disabled'); // disable them
});

how do i toggle .attr('disabled',false);

I cant seem to find it on google.