function prepareMenuElements() {
	var tags = document.getElementsByTagName('li');
	for ( var i = 0; i < tags.length; i++ )
	{
		if (tags[i].className == 'sublevels')
		{
			obj = tags[i].style.display = 'none';
		}
	}
}


function openClose( obj ) {
//	prepareMenuElements();
	do
	{
		obj=obj.nextSibling;
		if ( !obj ) return;
	}
	while ( obj.nodeType != 1 );

	if (obj.style.display == "block")
	{
	obj.style.display = "none";
	}
	else 
	{
	obj.style.display = "block";
	}
}