f_t = false;
function showMenu(m) {
	if(document.getElementById('sm_'+m)) {
	  if(document.all) {
  		document.getElementById('sm_'+m).style.top = document.getElementById('m_'+m).offsetTop + 147;
  		document.getElementById('sm_'+m).style.left = document.getElementById('m_'+m).offsetLeft + 21;
  		document.getElementById('sm_'+m).style.display = 'block';
	  } else {
  		document.getElementById('sm_'+m).style.top = document.getElementById('m_'+m).offsetTop + 27;
  		document.getElementById('sm_'+m).style.left = document.getElementById('m_'+m).offsetLeft;
  		document.getElementById('sm_'+m).style.display = 'block';
	  }
	}
}

function hideMenu(m) {
	if((document.getElementById('sm_'+m))&&(f_t == true)) {
		document.getElementById('sm_'+m).style.display = 'none';
	} else {
		for(x = 0; x <= 50; x++) {
			if(document.getElementById('sm_'+x)) {
				document.getElementById('sm_'+x).style.display = 'none';
			}
		}
	}
}

function showSubMenu() {
	f_t = true;
}

function hideSubMenu(m) {
	document.getElementById('sm_'+m).style.display = 'none';
	f_t = false;
}