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Home/ Questions/Q 7033557
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Editorial Team
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Editorial Team
Asked: May 28, 20262026-05-28T01:04:49+00:00 2026-05-28T01:04:49+00:00

I am using jQuery 1.7.1 I am trying to make it so that when

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I am using jQuery 1.7.1

I am trying to make it so that when one element is keyed in, another element with a specific class will have its id and value changed.

Here is my HTML:

<html><body><table><tr><td>

<input type='text' id="A">
<input type='text' id="B" class='SponsorID'>

</td></tr></table></body></html>

Here is my jQuery:

$("#A").keyup(function() {
   var ThisValue = $("#A").val();
   $(".SponsorID").val(ThisValue);
   $(".SponsorID").attr("id", ThisValue);
});

What works? The value of the element with the class of SponsorID changes.

What doesn’t work? The id of the element with the class of SponsorID does NOT change.

I would expect that the id would change. Why does the ID not change?

Here’s my fiddle:

http://jsfiddle.net/GWzpU/16/

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  1. Editorial Team
    Editorial Team
    2026-05-28T01:04:49+00:00Added an answer on May 28, 2026 at 1:04 am

    It is working as is. Try using google chrome or firebug to inspect the dom.

    http://jsfiddle.net/Tentonaxe/GWzpU/17/

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