Change the background image "on click" with jQuery

Starx

Its as simple as this

$("#mylink").click(function() { 
           // ^ Attach a function on click event of an element with id="mylink"
  //Change the css of a element with id="myDiv"
  $("#myDiv").css("backgroundImage", "url(newimage.jpg)");
               // Note ^: In jQuery, the parameters with "-" as define that way
               // But of course .css() supports "-" also, but make a habit of doing in camel-case
});

Demo