function fHide_Show(tipo,arq,arqNS)
{

if(navigator.appName.indexOf("Netscape") != -1)
{
  if (tipo==2)
  {
	document.layerbuttons.document.write(" <table border='0' align='center' valign='middle'>")
	document.layerbuttons.document.write("    <tr>")
	document.layerbuttons.document.write("      <td><a href='javascript:parent.location.reload();'><img src='Imagens/btn_home.gif' border='0' width='23' height='23'></a></td>")
	document.layerbuttons.document.write("      <td><img src='Imagens/btn_print_off.gif' border='0' width='23' height='23'></td>")
	document.layerbuttons.document.write("      <td><img src='Imagens/btn_friend_off.gif' border='0' width='23' height='23'></td> ")   
	document.layerbuttons.document.write("    </tr>")
	document.layerbuttons.document.write(" </table>")
	document.layerbuttons.document.close()  
  }
  if (tipo==1)
  {
	document.layerbuttons.document.write("<table border='0' align='center' valign='middle'>")
	document.layerbuttons.document.write("    <tr>")
	document.layerbuttons.document.write("      <td><a href='javascript:parent.location.reload();'><img src='Imagens/btn_home.gif' border='0' width='23' height='23'></a></td>")
	document.layerbuttons.document.write("      <td><a href='#' onclick=javascript:abrejanela_prn('"+ arqNS +"');><img src='Imagens/btn_print_on.gif' border='0' width='23' height='23'></a></td>")
	document.layerbuttons.document.write("      <td><a href='#' onclick=javascript:abrejanela_eml('"+ arqNS +"');><img src='Imagens/btn_friend_on.gif' border='0' width='23' height='23'></a></td>")
	document.layerbuttons.document.write("</table>	  ");
	document.layerbuttons.document.close()
  }
}
else
{
    if (tipo==2)
  {
  	Normal.style.visibility='visible'
	Ativo.style.visibility='hidden'
  }
  
  if (tipo==1)
  {
//  alert(eval(arq+".style.visibility='visible'"));
  	Normal.style.visibility='hidden'
	Ativo.style.visibility='visible'
  }

}
  
    
}