Question

Any body knows how PHP My Admin shifts focus from one field to other in add new table or other forms using CTRL + DOWN ARROW keys?

Answer 1

When on the same row just find the closest td then switch to the previous or the next one, find the input and focus it. example with next:

$(this).closest('td').next().find('input').focus();

When on different row find the closest tr then switch to next or previous one. Using the index of the current td find the index of the new td, find the input and focus it. exemple wih next:

$(this).closest('tr').next().find('td').eq($(this).closest('td').index()).find('input').focus();

I have created a jsfiddle to demonstrate.