var isnetscape;
var isie;
var oldNS;
var mytimer;
var div_obj;

function doinit()
{
  isie = (document.all) ? 1 : 0;
  isnetscape= (document.layers) ? 1 : 0;
  oldNS = 0;
  var brow = ((navigator.appName) + (parseInt (navigator.appVersion)));
  var agent = (navigator.userAgent);
  if (brow == "Netscape4")
	oldNS = 1;
		
  if(oldNS!=1)
	div_obj = document.getElementById('mydiv1').style;
  hideall();  
}

function hideall()
{
  if(isie)
  {
    document.all["mydiv1"].style.visibility="hidden";
  }
  else 
  { 
	if(oldNS==1)
	   document.layers['mydiv1'].visibility="hide";
	else
	   div_obj.visibility="hidden";
  }
}

function hidenow(adiv)
{
  if(isie){
    document.all[adiv].style.visibility="hidden";
  }
  else{
  	if(oldNS==1)
		document.layers['mydiv1'].visibility="hide";
	else
		div_obj.visibility="hidden";
  }
}

function showit(mydiv)
{
  doinit();
  hideall();
  clearTimeout(mytimer);
  if (isie)
    document.all['mydiv1'].style.visibility="visible";
  else {
	if (oldNS==1)
		document.layers['mydiv1'].visibility="show";
	else
		div_obj.visibility="visible";   
  }
}
 
function hideit(mydiv)
{
  mytimer= setTimeout("hidenow('" + mydiv + "');",2200);
//  mytimer= setTimeout("hidenow('" + mydiv + "');",3500);
}