function menuop(a,b,c,d,e) 
{

	document.getElementById(a).style.display = "block";
	document.getElementById(b).style.display = "none";
	document.getElementById(c).style.display = "none";
	document.getElementById(d).style.display = "none";
	document.getElementById(e).style.display = "none";

}

	function getPosition(elename) 
{
	var x=0;
	var y=0;
	var ele= document.getElementById(elename);

	while (ele) {
		x+=ele.offsetLeft;
		y+=ele.offsetTop;
		ele=ele.offsetParent;
		}

	return new Array(x,y);
}
					   
function tooltip(tt,tbl,lft,tp)
{
  var table = tbl;
  var imgpos = getPosition(tt);
  var pos1 = eval(imgpos[0]);
  var pos2 = eval(imgpos[1]);
  var x = eval(lft);
  var y = eval(tp);
  var relposleft = eval(pos1+x);
  var relpostop = eval(pos2+y);



document.getElementById(table).style.left = relposleft+'px';
document.getElementById(table).style.top = relpostop+'px';
document.getElementById(table).style.display = 'block';

}

function tooltipclose(a)
{
document.getElementById(a).style.display = 'none';
}