JSFiddle - React, Tailwind, and code Playground
HTML
<img id='i1' src='http://l.yimg.com/g/images/en-us/home_explore.png.v1'>
<img id='i2' src='http://l.yimg.com/g/images/en-us/home_edit.png.v1'>
JavaScript
$('#i1').bind('mouseover',function(){
$('#i2').data({ original:$('#i2').attr('src') })
$('#i2').attr({ src:'http://l.yimg.com/g/images/en-us/home_upload.png.v1' })
}).bind('mouseout',function(){
$('#i2').attr({ src:$('#i2').data('original') })
})