function highlightMenu(menuItem)
{
    if(menuItem == "homeItem")
        document.getElementById("homeItem").src = "images/site/menu/homeOver.gif";     
    else if(menuItem == "nieuwsItem")
    {
        document.getElementById("nieuwsItem").src = "images/site/menu/nieuwsOver.gif";
        document.getElementById("nieuwsSub").style.display = "block";
    }    
    else if(menuItem == "dienstenItem")
    {
        document.getElementById("dienstenItem").src = "images/site/menu/dienstenOver.gif";
        document.getElementById("dienstenSub").style.display = "block";
    }
    else if(menuItem == "onlineBoekhoudenItem")
        document.getElementById("onlineBoekhoudenItem").src = "images/site/menu/onlineBoekhoudenOver.gif";         
    if(menuItem == "linksItem")
        document.getElementById("linksItem").src = "images/site/menu/linksOver.gif";           
    else if(menuItem == "contactItem")
    {
        document.getElementById("contactItem").src = "images/site/menu/contactOver.gif";
        document.getElementById("contactSub").style.display = "block";         
    }
}

function normalizeMenu(menuItem, leaveImage)
{
    if((menuItem == "homeItem") && !leaveImage)
        document.getElementById("homeItem").src = "images/site/menu/home.gif";    
    else if(menuItem == "nieuwsItem")
    {
    	if(!leaveImage)
        	document.getElementById("nieuwsItem").src = "images/site/menu/nieuws.gif";
        document.getElementById("nieuwsSub").style.display = "none";
    }      
    else if(menuItem == "dienstenItem")
    {
    	if(!leaveImage)
        	document.getElementById("dienstenItem").src = "images/site/menu/diensten.gif";
        document.getElementById("dienstenSub").style.display = "none";        
    }
    else if((menuItem == "onlineBoekhoudenItem") && !leaveImage)
        document.getElementById("onlineBoekhoudenItem").src = "images/site/menu/onlineBoekhouden.gif";             
    if((menuItem == "linksItem") && !leaveImage)
        document.getElementById("linksItem").src = "images/site/menu/links.gif";                   
    else if(menuItem == "contactItem")
    {
    	if(!leaveImage)
        	document.getElementById("contactItem").src = "images/site/menu/contact.gif";                 
        document.getElementById("contactSub").style.display = "none";         	
    }
}