Check if image exists on server using JavaScript

function checkImage(src) { var img = new Image(); img.onload = function() { // code to set the src on success $(#image-test).css(background, url( + src + ') no-repeat 50% 50%'); }; img.onerror = function() { // doesn't exist or error loading alert('no image'); }; img.src = src; // fires off loading of image}checkImage('http://www.google.com/images/logo_sm.gif');