function findOwner( evt )
{
    var node;
    if (isNav6)
    {
        node = evt.target;
        while (node)
        {
            if ( node.nodeType == Node.ELEMENT_NODE &&
                 node.nodeName == "DIV")
            {
                return node;
            }
            node = node.parentNode;
        }
    }
    else if (isIE4)
    {
        node = window.event.srcElement;
        while (node)
        {
            if (node.tagName == "DIV")
            {
                return node;
            }
            node = node.parentElement;
        }
    }
    return null;
}
//+---------------------------------------------------------------------------------------------+//
function highlight( evt )
{
    var divObj = findOwner( evt );
    if (isNav6) { divObj.style.cursor = "pointer"; }
    divObj.style.color = "#000";
}
//+---------------------------------------------------------------------------------------------+//
function dim( evt )
{
    var divObj = findOwner( evt );
    if (isNav6) { divObj.style.cursor = "pointer"; }
    divObj.style.color = "#069";
}
//+---------------------------------------------------------------------------------------------+//
function getObject( nameStr )
{
    if (isNav6)
    {
        return document.getElementById( nameStr );
    }
    else if (isIE4)
    {
        return document.all[nameStr];
    }
}
//+---------------------------------------------------------------------------------------------+//
function showMenu( evt )
{
    var owner = findOwner( evt );
    var divNum;

    if (isNav6)
    {
        divNum = owner.attributes.getNamedItem("id").nodeValue;
    }
    else if (isIE4)
    {
        divNum = owner.id;
    }

    divNum = parseInt( divNum.substr(1));

    if (getIdProperty( "s" + divNum, "display") != "block" )
    {
        setIdProperty("s" + divNum, "display", "block");
        document.images["i" + divNum].src = "images/minus.gif";
    }
    else
    {
        setIdProperty("s" + divNum, "display", "none");
        document.images["i" + divNum].src = "images/plus.gif";
    }
}
//+---------------------------------------------------------------------------------------------+//
function setupAction( node )
{
    if (isNav6)
    {
        node.addEventListener( "click", showMenu, false);
        node.addEventListener( "mouseover", highlight, false );
        node.addEventListener( "mouseout", dim, false );
        node.style.fontWeight = "bold";
    }
    else if (isIE4)
    {
        node.onclick = showMenu;
        node.onmouseover = highlight;
        node.onmouseout = dim;
    }
}
//+---------------------------------------------------------------------------------------------+//
function setupEvents()
{
    var i;
    var theNode;

    for (i=0; i<vocabList.length; i++)
    {
        theNode = document.getElementById( "s" + i );
        setupAction( theNode );
    }
}
//+---------------------------------------------------------------------------------------------+//
function setup() {
    var i;
    var obj;
    for (i=0; i < 1; i++) {
        obj = getObject( "m" + i );
        setupAction( obj );
    }
}


// on page onLoad => setBrowser();