function MapHover(host, direction) {
	//alert(host);
	//alert(direction);
	var ControlId = host.id.substring(host.id.indexOf('=')+1,host.id.length);
	
	if (direction == 'in') {
		document.getElementById('hover_'+ControlId).style.visibility = 'visible';
	} else {
		document.getElementById('hover_'+ControlId).style.visibility = 'hidden';
	}
}