function btn_show_sub(_id) {
	// hide all posible submenus
	//top_menu_elements_array;
	
	for(i=0; i<top_menu_elements_array.length; i++) {
		btn_hide_sub(top_menu_elements_array[i]);
	}

	// show one we want
	if (document.layers) {

  	} else {
    	var _el = document.getElementById('submenu' + _id)
//	    _el.style.display = '';
		if (_el != null) {
			_el.style.visibility = 'visible';
		}
	}

/*
hidden
: visible;*/
}

function btn_hide_sub(_id) {
	if (document.layers) {

	} else {
    	var _el = document.getElementById('submenu' + _id)
//	    _el.style.display = 'none';
		_el.style.visibility = 'hidden';
	}
}

function setPointer(theRow,theClass)
{
    theRow.className = theClass;
    
}

function fix_content() {
   	var _el = document.getElementById('content');
	_el.style.display = '';
	_el.style.visibility = 'visible';
}