var infodiv;
var active ='';
var activeID;
var lasttrigger;
var pending;
var pendingout;
var actparent;
var lastparent;



function showDiv (id) {
	activeID='';
	var actid = 'S'+pending;
	var parid = 'M'+pending;

	active = document.getElementById(actid);
	if (active) {
		activeID=pending;
		active.style.display='block';

	}
	actparent = document.getElementById(parid);
	actparent.style.backgroundImage ='url(/images/nav1bg-a.gif)' ;

	pending='';
	var DER='DER';

}

function hideDiv() {
	if (active) {
	active.style.display='none';
	}
	if (lastparent) {
	lastparent.style.backgroundImage ='' ;
	}
	pendingout='';
	active='';
	activeID='';
}

function overTop () {
	if (! infodiv ) {
		infodiv = document.getElementById('info');
	}
	if (pending) {
		if (activeID != pending && active) {
			hideDiv();
		}
		showDiv(pending);
	} else if (pendingout) {
		hideDiv();
	} else
	{

	}
	if (lasttrigger) {
//		infodiv.innerHTML=lasttrigger;
	} else {
		lastparent=actparent;
//		hideDiv();
	}
	lasttrigger='';
	var DER='DER';
	return DER;
}

function over(id) {
	lasttrigger = 'over '+id;
	if (pendingout == id) {
		pendingout='';
		return;
	}
	if (id == activeID) {

	} else if (! pending) {
		lastparent= actparent;
		pending=id;

	}
	var DER='DER';
}

function out(id) {
	lasttrigger = 'out '+id;
	pendingout = id;
	var DER='DER';
}