var curID = "";
function Smenuitem(ID)
{	
    if(curID != "") Hmenuitem(curID);
	document.getElementById(ID).style.display = "";
    curID = ID;
}

function Hmenuitem(ID)
{
	if(!document.getElementById(ID)) return;
	document.getElementById(ID).style.display = "none";
    curID = "";
}



function HideShowLevel(ID)
{

LevelID = "level"+ID;

var currentDisplayValue = document.getElementById(LevelID).style.display;

if (currentDisplayValue == "none")
        {
                document.getElementById(LevelID).style.display = "";

                eval('document.image' + ID + '.src = "/images/menu_level_on.gif"');
        
        }
        else {
                document.getElementById(LevelID).style.display = "none";

                	eval('document.image' + ID + '.src = "/images/menu_level_off.gif"');

        }

}

function Chclass(ID)
{

LevelID = "level"+ID;

var currentDisplayValue = document.getElementById(LevelID).style.display;

if (currentDisplayValue == "none")
        {
                document.getElementById(ID).className = "lev2-bot";
        }
        else {
                document.getElementById(ID).className = "lev2";
        }
}