function showMenu(menuid) {
	
	tmp = document.getElementsByTagName('div');
	
  for (i=0;i<tmp.length;i++)
  {
  	if (tmp[i].className == 'subcategory') tmp[i].style.display = 'none';
  }
    
	eval("document.getElementById('menu" + menuid+ "').style.display='block';");
}