$(document).ready(function(){  
    $(".button5").hover(function() {  
        $(this).attr("src","assets/templates/default/images/navigation/btn_maintain2.png");  
            }, function() {  
        $(this).attr("src","assets/templates/default/images/navigation/btn_maintain.png");  
 });  
}); 

$(document).ready(function(){  
    $(".button6").hover(function() {  
        $(this).attr("src","assets/templates/default/images/navigation/btn_social2.png");  
            }, function() {  
        $(this).attr("src","assets/templates/default/images/navigation/btn_social.png");  
 });  
}); 

$(document).ready(function(){  
    $(".button7").hover(function() {  
        $(this).attr("src","assets/templates/default/images/navigation/btn_search2.png");  
            }, function() {  
        $(this).attr("src","assets/templates/default/images/navigation/btn_search.png");  
 });  
}); 

$(document).ready(function(){  
    $(".button8").hover(function() {  
        $(this).attr("src","assets/templates/default/images/navigation/btn_newtech2.png");  
            }, function() {  
        $(this).attr("src","assets/templates/default/images/navigation/btn_newtech.png");  
 });  
});