How do I change the "href" of <a> through Javascript Jquery?

Suppose I have this:

<a id="main_link" href="http://feedproxy.google.com/~r/AmazonWir开发者_StackOverflow中文版e/~5/FN5UZlXKwdY/SalmanRushdiePodcast.mp3">

How do I use Jquery to change the "href" to something else?

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Get a reference to your link, and use the attr method on it:

$('#main_link').attr('href', 'something_else');

That grabs the elements with id="main_link" using the id "#" css selector (should only be one in the document), and sets the href attribute of all (again, should only be one in the document).

jQuery can perform the exact same operation on batch to a class of elements:

$('.main_link').attr('href', 'something_else');

That grabs the elements with css class="main_link" instead.

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$("#main_link").attr("href","http://...");

http://docs.jquery.com/Attributes/attr

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$('#main_link').attr('href','your new href');