var mposarr = { 'mhome': 0,	 'msumm': -145,		'mproj': -290,		'mlink': -435 };
var mhrfarr = { 'mhome':'/', 'msumm':'/summary/',	'mproj':'/project/','mlink': '/link/' };
var smflag  = { 'mhome': 0,	 'msumm': 0,		'mproj': 0,			'mlink': 0 };
var clrflg  = { 'mhome': 0,	 'msumm': 0,		'mproj': 0,			'mlink': 0 };

function mover(id){
	var posx = mposarr[id];
	document.getElementById(id).style.backgroundPosition = posx + 'px 0px';
	return false;
}

function mout(id){
	var posx = mposarr[id];
	document.getElementById(id).style.backgroundPosition = posx + 'px -32px';
	return false;
}

function mhref(id){
	var ref = mhrfarr[id];
	mout(id);
	location.href = ref;
	return false;
}

function mopen(id){
	if(smflag[id] == 0) {
		smclose();
		smflag[id] = 1;
		document.getElementById('s' + id).style.visibility = 'inherit';
	}else{
		document.getElementById('s' + id).style.visibility = 'hidden';
		smflag[id] = 0;
	}
	return false;
}

function smclose(){
	for(var k in smflag){
		smflag[k] = 0;
		document.getElementById('s' + k).style.visibility = 'hidden';
	}
	return false;
}