function altt(text)
{
 var el = document.getElementById("altt");

 document.getElementById("altt").innerHTML = '<table border=0 cellspacing=1 cellpadding=5 bgcolor=#000000><tr><td bgcolor=#ffffff style="color:#000000;font-size:70%">'+text+'</td></tr>';
 document.getElementById("altt").style.visibility = "visible";

 var x = window.event.clientX + document.documentElement.scrollLeft + document.body.scrollLeft + 3;
 var y = window.event.clientY + document.documentElement.scrollTop + document.body.scrollTop+5;

 el.style.left = x + "px";
 el.style.top  = y + "px";

 if (window.event.clientX + el.offsetWidth + 3 > document.body.clientWidth)
 {
  x -= (window.event.clientX + el.offsetWidth + 3 - document.body.clientWidth);
  el.style.left = x + "px";
 }

 document.getElementById("altt").focus();
}

function altt_close()
{
 document.getElementById("altt").style.visibility = "hidden";
}