var $ = jQuery.noConflict();
$(document).ready(function() {
    /* for top navigation */
    $(" .navigation ul ").css({
        display: "none"
    }); // Opera Fix
    $(" .navigation li").hover(function(){
        $(this).find('ul:first').css({
            visibility: "visible",
            display: "none"
        }).slideDown(400);
    },function(){
        $(this).find('ul:first').css({
            visibility: "hidden"
        });
    }),
    
    $(".action").mouseover(function(){
        $(this).attr("src", "images/ajout-annonce-guitare-1.png");
    }).mouseout(function(){
        $(this).attr("src", "images/ajout-annonce-guitare.png");
    });    
          
});