function ref(object)
{
if (document.getElementById)
{
return document.getElementById(object);
}
else if (document.all)
{
return eval('document.all.' + object);
}
else
{
return false;
}
}

function expand(object)
{
var object = ref(object);

if( !object.style )
{
return false;
}
else
{
object.style.display = '';
}

if (window.event)
{
window.event.cancelBubble = true;
}
}

function contract(object)
{
var object = ref(object);

if( !object.style )
{
return false;
}
else
{
object.style.display = 'none';
}

if (window.event)
{
window.event.cancelBubble = true;
}
}

function toggle(object)
{
object = ref(object);
if( !object.style )
{
return false;
}

if( object.style.display == 'none' )
{
object.style.display = '';
}
else
{
object.style.display = 'none';
}
}
function hide(object)
{
object = ref(object);
if( !object.style )
{
return false;
}

if( object.style.display == 'none' )
{
object.style.display = 'none';
}
else
{
object.style.display = 'none';
}
}