$(document).ready(function() {


$(".icon").hover( function() {  // on mouseover

            
                $(this).data("originalImg", $(this).attr("src")); // save original
                $(this).attr("src", $(this).attr("data-imageover"));
            },
             function() {  // on mouseout
                $(this).attr("src", $(this).data("originalImg")); // change to original
            })
            
            
            });