var _subMenuTimeout;
var _visibleMenu;
var nTimeout = 500;

function LoadMenu()
{   
	/*Les spans qui ont un id dans la page sont des zones pour les menus*/
	var spans = document.getElementById("mainMenu").getElementsByTagName("LI");
	for( var nIdx=0; nIdx < spans.length; nIdx++ )
	{
		if( spans[nIdx].id != "" )
		{
			spans[nIdx].onmouseover = OnMainMenuItemMouseOver;
			spans[nIdx].onmouseout = OnMainMenuItemMouseOut;
            
            var submenu = document.getElementById(spans[nIdx].id + "Menu");
            if( submenu )
            {
                submenu.parentmenu = null;
                spans[nIdx].menu = submenu;
            }
		}
	}

    /*Assignation des événements des items des menu principaux*/
    var menu = document.getElementById("subMenus").childNodes;
    for( nIdx=0; nIdx<menu.length; nIdx++ )
    {
        if( menu[nIdx].tagName == "DIV" )
        {
            for( var nIdx2=0; nIdx2<menu[nIdx].childNodes.length; nIdx2++ )
            {
                var menuItem = menu[nIdx].childNodes[nIdx2];
                
                var submenu = document.getElementById(menuItem.id + "Menu");
                if( submenu != null )
                {
                    submenu.parentmenu = menu[nIdx];
                    menuItem.menu = submenu;
                }
                else
                {
                    menuItem.menu = null;
                }
    
                menuItem.onmouseover = OnSubMenuItemMouseOver;
                menuItem.onmouseout = OnSubMenuItemMouseOut;
                menuItem.onclick = OnSubMenuItemClick;
            }
        }
    }
}

function OnMainMenuItemMouseOver( evt )
{
	
	var div = GetEventObject( evt );
    while( div != null && div.tagName != "LI" )
        div = div.parentNode;
    
    if( div != null )
    {
        div.className = "MainMenuItemSelected"
    
    	HideSubMenu();
    	
    	//Afficher le sous-menu correspondant s'il y a lieu
        if( div.menu )
    	{
    	    div.menu.style.display = "block";
            div.menu.style.left = Number(getRealLeft( div ) - 2) + 'px';
			div.menu.style.top = Number(getRealTop( div ) + div.offsetHeight) + 'px';
			      	
            _visibleMenu = div.menu;
    	}
    }
}

function OnMainMenuItemMouseOut( evt )
{
	var div = GetEventObject( evt );
    while( div != null && div.tagName != "DIV" )
        div = div.parentNode;
	
    if( div != null )
    {
        div.className = "MainMenuItem";
    }
    
    _subMenuTimeout = setTimeout( "HideSubMenu()", nTimeout );
}

function HideSubMenu()
{
    clearTimeout(_subMenuTimeout );
    while( _visibleMenu != null )
    {
        _visibleMenu.style.display = "none";
        
        var menu = document.getElementById(_visibleMenu.id.replace("Menu",""));
        if( menu != null)
            menu.style.color = "#E3A842";
        
        _visibleMenu = _visibleMenu.parentmenu;
        
        
    }
}

function OnSubMenuItemMouseOver( evt )
{
	var div = GetEventObject( evt );
	while( div != null && div.tagName != "DIV" )
		div = div.parentNode;

	if( div != null )
	{
        //si le menu de l'item est différent du menu affiché
        //on cache le menu affiché.
        if( _visibleMenu != null && div.parentNode != _visibleMenu )
        {
            _visibleMenu.style.display = "none";
            _visibleMenu = div.parentNode;
        }
        
        clearTimeout(_subMenuTimeout );
        div.className = "subMenuSelectedItem";

        //Si l'item a un sous menu, on l'affiche
        if( div.menu != null )
        {
            div.menu.style.display = "block";
            
            if(navigator.platform == "MacPPC")
            {
                div.menu.style.left = Number(getRealLeft( div ) + div.offsetWidth - 4) + 'px';
                div.menu.style.top = Number(getRealTop( div ) - 42) + 'px'
            }
            else
            {
                div.menu.style.left = Number(getRealLeft( div ) + div.offsetWidth) + 'px'
                div.menu.style.top = Number(getRealTop( div ) - 1) + 'px'
            }
                
            _visibleMenu = div.menu;
        }
	}
}

function OnSubMenuItemMouseOut( evt )
{
    clearTimeout(_subMenuTimeout );
	var div = GetEventObject( evt );
	if( div != null && div.tagName == "A" )
		div = div.parentNode;

	if( div != null )
	{
		div.className = "subMenuItem";
		_subMenuTimeout = setTimeout( "HideSubMenu()", nTimeout );
	}
}

function OnSubMenuItemClick ( evt )
{
    var objClicked = GetEventObject( evt );
	while( objClicked != null && objClicked.tagName != "DIV" && objClicked.tagName != "A" )
		objClicked = objClicked.parentNode;
            
    if( objClicked != null && objClicked.tagName != "A" )
    {
        var lnk = objClicked.getElementsByTagName("A");
        if( lnk != null && lnk.length > 0 );
            window.location.href = lnk[0].href;
    }
}