$(function(){
    $("img.r-over").mouseover(function(){
        $(this).attr("src",$(this).attr("src").replace(/^(.+)(\.[a-z]+)$/, "$1_o$2"))
    }).mouseout(function(){
        $(this).attr("src",$(this).attr("src").replace(/^(.+)_o(\.[a-z]+)$/, "$1$2"));
    }).each(function(){
        $("<img>").attr("src",$(this).attr("src").replace(/^(.+)(\.[a-z]+)$/, "$1_o$2"))
    })

})



$(document).ready(function() {   
    $('#footer ul li:first-child').addClass('firstChild');   
});