jQuery change CSS after a certain amount of time

I have a navigation that, when one of it's nav items is clicked, will use jQuery to change it's z-index to 0. Then, after 2 secon开发者_运维问答ds, I would like the z-index to be changed to 2.

I tried using delay() but apparently that doesn't work when changing the CSS.

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Use a setTimeout like this

$(elem).css('z-index','0');
setTimeout(function(){ $(elem).css('z-index','2'); },2000)

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In javascript you can use either setTimeout or setInterval to accomplish that

setTimeout("javascript statement",milliseconds);

http://www.w3schools.com/js/js_timing.asp