usky-website/web/assets/v1/js/picture.js

$(function() { 
var $img = $("img"); 
$img.hover(function() { 

	
$(this).attr("src",$(this).attr("src").replace("_on","_off")); 
},function() { 
$(this).attr("src",$(this).attr("src").replace("_off","_on")); 
}); 
});