javascript - setInterval + image src changes when clicked on button -

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i want give blink effect(dark , light) when clicked on button.i have written following code not work.so please me.

$(document).ready(function () {      $(".search").click(function () {         setinterval(function () {             var cursrc = $("#red").attr('src');              if (cursrc === '../images/lightred.jpg') {                 $(cursrc).attr("src", "../images/darkred.jpg");             }             if (cursrc === '../images/darkred.jpg') {                 $(cursrc).attr("src", "../images/lightred.jpg");             }         }, 2000);     });  });

cursrc source attribute, yet trying wrap in jquery, won't make object. you'll have target #red again , set source:

if (cursrc === '../images/lightred.jpg') {             $("#red").attr("src", "../images/darkred.jpg"); } if (cursrc === '../images/darkred.jpg') {             $("#red").attr("src", "../images/lightred.jpg"); }

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