function showMenu (gid) {
	var tables = document.getElementsByTagName('table');
	for (var table = 0; table < tables.length; table++) {
		if (tables[table].id.match('submenu')) {
			var hidden_table = document.getElementById(tables[table].id);
			hidden_table.style.display = 'none';
		}
	}
	var hiddeBlankTable = document.getElementById('submenu');
	hiddeBlankTable.style.display = 'none';
	var showTable = document.getElementById('submenu' + gid);
	showTable.style.display = window.navigator.appName == 'Microsoft Internet Explorer' ? 'block' : 'table';
}

function showMenuButton (buttNo, actButton) {

	var buttons = new Array('robota-apraksts', 'robots-darbiba', 'atbalsts-serviss', 'mans-robots');
	for (imgNo = 1; imgNo <= 4; imgNo++) {
		var buttonIMG = document.getElementById('menuButton' + imgNo);
		if (imgNo == buttNo)
			buttonIMG.src = '/img/' + buttons[imgNo-1] + '-A_lv.jpg';
		else
			buttonIMG.src = '/img/' + buttons[imgNo-1] + '_lv.jpg';
	}
}