function removeClass(id, className)
{
    document.getElementById(id).className = document.getElementById(id).className.replace(" " + className, "");         
}


function getValue(id)
{    
    try
    {
        var n = document.getElementById(id);        
        if (n == undefined)
            return ""; 
        else
            return n.value; 
    }
    catch (e)
    {
        return ""; 
    }
}



function Facebook_mouseOver()
{
    document.getElementById('facebook_bubble').src = "/img/hover/facebook_1.jpg"; 
    //document.getElementById('facebook_link').className += " facebook_hover"; 

}

function Facebook_mouseOut()
{
    document.getElementById('facebook_bubble').src = "/img/facebook_1.jpg"; 
    //removeClass("facebook_link", "facebook_hover"); 
}


function Twitter_mouseOver()
{
    document.getElementById('twitter_bubble').src = "/img/hover/twitter_1.jpg";     

}

function Twitter_mouseOut()
{
    document.getElementById('twitter_bubble').src = "/img/twitter_1.jpg";     
}


function RSS_mouseOver()
{
    document.getElementById('rss_bubble').src = "/img/hover/rss_1.jpg";     
}

function RSS_mouseOut()
{
    document.getElementById('rss_bubble').src = "/img/rss_1.jpg";     
}


function register_mouseOver()
{
     document.getElementById('register_bubble').className += " register_hover bubble_link_hover"; 
     document.getElementById('register_txt').className += " txt_hover"; 
     document.getElementById('register_submit').className += " submit_hover"; 
     
}


function register_mouseOut()
{
    removeClass("register_bubble", "register_hover bubble_link_hover"); 
    removeClass("register_txt", "txt_hover"); 
    removeClass("register_submit", "submit_hover"); 
}



function resend_mouseOver()
{
     document.getElementById('resend_bubble').className += " resend_hover bubble_link_hover"; 
     document.getElementById('resend_txt').className += " txt_hover"; 
     document.getElementById('resend_submit').className += " submit_hover";                     
}


function resend_mouseOut()
{
    removeClass("resend_bubble", "resend_hover bubble_link_hover"); 
    removeClass("resend_txt", "txt_hover"); 
    removeClass("resend_submit", "submit_hover"); 
}


function img_mouseOver(id)
{
    var img = document.getElementById(id); 
    if (img == undefined) return; 
    img.src = img.src.replace('bw-yes', 'bw-no'); 
}

function img_mouseOut(id)
{
    var img = document.getElementById(id); 
    if (img == undefined) return; 
    img.src = img.src.replace('bw-no', 'bw-yes'); 
}


function first_mouseOver()
{
    document.getElementById('first_img_link').className += " homepage_firstimg_hover"; 
    document.getElementById('first_bubble').className += " homepage_first_bubble_hover bubble_link_hover";             
    document.getElementById('first_odzacatku').className += " homepage_odzacatku_hover bubble_link_hover"; 
}



function first_mouseOut()
{    


    removeClass("first_bubble", "homepage_first_bubble_hover bubble_link_hover"); 
    removeClass("first_odzacatku", "homepage_odzacatku_hover bubble_link_hover");     
    removeClass("first_img_link", "homepage_firstimg_hover"); 
}



function last_mouseOver()
{
    document.getElementById('last_bubble').className += " homepage_newest_bubble_hover bubble_link_hover";             
    document.getElementById('last_img_link').className += " homepage_newest_img_hover";     
}


function last_mouseOut()
{    
    removeClass("last_bubble", "homepage_newest_bubble_hover bubble_link_hover");     
    removeClass("last_img_link", "homepage_newest_img_hover"); 
}