How to get a specific input field from input fields list share a same name?

[webster5u]

Hi, I have multiple input fields which is sharing similiar elements name so it will submit a array to other page.
Whereas, i encounter a problem now, i want get number third element from the list in order to do specific change by javascript function.
How i suppose to do to get the element with the element name, any possible method to do it?

[prabirchoudhury]

could you mention some sample code, that would make easier ..
1. input field declare with a ID and in javascript call that ID getElemenetById(id_name) would do your job.

[acoder]

Another option is to use document.getElementsByName():

var elems = document.getElementsByName("element_name");
var third_elem = elems[2];