ns=window.navigator.appName == "Netscape"
ie=window.navigator.appName == "Microsoft Internet Explorer"
openTag = false;

function openIt(x)
{
   openTag = true;
   if(ns)
   {
  /*
      showbox= document.layers[x]
      showbox.visibility = "show"

      var items = 3
      for (i=0; i<=items; i++)
      {
         elopen=document.layers[i]
         if ((elopen.visibility = "show")&&(elopen != showbox))
         {
            elopen.visibility = "hide"
         }
      }
     */
   }

   if(ie)
   {
      showBox = document.all.box[x]
      showBox.style.visibility = "visible"

      var items = 3
      for (i=0; i<items; i++)
      {
         elOpen=document.all.box[i]
         if ((elOpen.style.visibility == "visible")&&(elOpen != showBox))
         {
            elOpen.style.visibility = "hidden"
         }
      }
   }
}

function openAll(x)
{
   openTag = true;
   if(ns)
   {
      showbox= document.layers[x]
      showbox.visibility = "show"

      var items = 4
      for (i=0; i<=items; i++)
      {
         elopen=document.layers[i]
         if ((elopen.visibility = "show")&&(elopen != showbox))
         {
            elopen.visibility = "hide"
         }
      }
   }

   if(ie)
   {
      showBox = document.all.box[x]
      showBox.style.visibility = "visible"

      var items = 4
      for (i=0; i<items; i++)
      {
         elOpen=document.all.box[i]
         if ((elOpen.style.visibility == "visible")&&(elOpen != showBox))
         {
            elOpen.style.visibility = "hidden"
         }
      }
   }
}


function checkCloseIt()
{
   if(ns)
   { 
      var items = 3
      for (i=0; i<items; i++)
      {
      	document.layers[i].visibility = "hide"
      }
   }	
}

function closeIt()
{
   if (openTag)
   {
       var items = 3
       for (i=0; i<items; i++)
          {
          	 if(ie){ document.all.box[i].style.visibility = "hidden" }
 	  }
       openTag = false;
   }
}