function getObject(objectId) {
    if(document.getElementById && document.getElementById(objectId)) {
	// W3C DOM
	return document.getElementById(objectId);
    } else if (document.all && document.all(objectId)) {
	// MSIE 4 DOM
	return document.all(objectId);
    } else if (document.layers && document.layers[objectId]) {
	// NN 4 DOM.. note: this won't find nested layers
	return document.layers[objectId];
    } else {
	return false;
    }
}

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

function showMenu(obj1, obj2, type, classname){
		if( type == 1){
			getObject(obj1).className = classname;
			getObject(obj2).style.display = 'block';
		}else{
			getObject(obj1).className = '';
			getObject(obj2).style.display = 'none';
		}
}