couldn't pass value to textbox for morethan one time without refreshing the page using javascript

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when i pass a value to textbox using javascript its working fine first time before update data, after the update table will be refreshed. then i couldn't pass value to textbox in the same way, but its working if i refresh the browser.

<div id="div_for_values"><a href="#" key_id="<?php echo $lang_id; ?>" key_value="<?php echo $lang_name; ?>">Edit</a></div>

Javascript

$(function(){
        $("#div_for_values  a").click(function(){
			var key_id = $(this).attr("key_id");
			var key_value = $(this).attr("key_value");
			//alert(key_id);
           $('#txt_name_id').val(key_id);
		   $('#txt_name').val(key_value);
           return false;
        })
    });