title: jQuery $("img[src=the_image_souce]").attr('src','new_src'); does not work
body: <p>My code does not work I don't know why
  the_image_source and new_src are just place holders I have put real values in them</p>
  
  <p>I have also tried <code>$("img[src=the_image_souce]")[0].attr('src','new_src');</code> but it does not work either, please help</p>