function showalt(titulo,string)
{
var helpbox ="";
helpbox = helpbox + "<table width='172' border='0' cellpadding='0' cellspacing='0' bordercolor='#c4c6d6'>";
helpbox = helpbox + "<tr><td bgcolor='#edf2f7' colspan=2 height='5' class='txt9'>&nbsp;&nbsp;<b>"+ titulo +"</b></td></tr>";
helpbox = helpbox + "<tr><td height='1' colspan=2 bgcolor='#d2d7dc'></td></tr>";
helpbox = helpbox + "<tr><td width=5>&nbsp;</td><td class='txt2' width=167>" + string + "</td></tr>";
helpbox = helpbox + "</table>";

	if((event.clientX > 0) &&
	      (event.clientY > 0) &&
	      (event.clientX < document.body.offsetWidth) &&
	      (event.clientY < document.body.offsetHeight)){
		        
		     if ((event.clientX + 150) < document.body.offsetWidth){
		        help.style.posLeft = event.clientX +10;
		      }
		      else{
		        help.style.posLeft = event.clientX -15;
		      }
		        help.style.posTop  = event.clientY - 15;
		        help.innerHTML = helpbox;
		        help.style.visibility = 'visible'; 
		       
		  }
}
function hiddenalt()
{
	help.style.visibility = 'hidden'; 
}
document.write("<span id=\'help\' style=\"font-family:\'arial, verdana\'; font-size:\'10px\';visibility:\'hidden\';border:1px solid; border-color:\'#c4c6d6\'; background-color:\'#ffffff\'; z-index:\'100\'; position: absolute; top: 0; left: 0; width:\'172\'; height:\'82\';\"></span>");