function oemenu(elId){
	var obj = getObject(elId);
	if(obj.display == "block"){
		obj.display = "none";
	} else {
		obj.display = "block";
	}
}

function getObject(objectId) {
    if(document.getElementById && document.getElementById(objectId)) {
		return document.getElementById(objectId).style;
    } else if (document.all && document.all(objectId)) {
		return document.all(objectId).style;
    } else if (document.layers && document.layers[objectId]) {
		return document.layers[objectId];
    } else {
		return false;
    }
}