var timeout = 600;
var timeouts = new Array();
var tempID = 0;
var activeMenu;

function navHover()
{

    var navItems = document.getElementById('site-nav').getElementsByTagName('li');
    
    for( var i=0; i<navItems.length; i++ )
    {
        if(navItems[i].className == 'menuparent')
        {
            navItems[i].onmouseover=show;
            navItems[i].onmouseout=hide;
        }
    }

}

function show()
{
    if( !this.id ) this.id = 'tempID' + tempID++;
    if( activeMenu && activeMenu != this.id ) timeOutHide( activeMenu );
    if( timeouts["" + this.id] ) eval ( "clearTimeout( timeouts['" + this.id + "'] );" );
    if( this.className.indexOf(' over') == -1 ) this.className += ' over';
    activeMenu = this.id;
}

function hide()
{
    eval( "timeouts['" + this.id + "'] = window.setTimeout(\"timeOutHide('" + this.id + "')\", " + timeout + ");" );
}

function timeOutHide( id )
{
    document.getElementById(id).className = 'menuparent';
}