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

function openIt(x) {
if(ns) {
   showbox= document.layers[x+2]
      showbox.visibility = "show"
   
 var items = 7      
     for (i=2; 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 = 6 
   for (i=0; i<items; i++) {
      elOpen=document.all.box[i]
        if ((elOpen.style.visibility == "visible")&&(elOpen != showBox)){ 
          elOpen.style.visibility = "hidden" }
      }
   }
}

function closeIt() {
       var items = 6
          for (i=0; i<items; i++) {
           if(ie){ document.all.box[i].style.visibility = "hidden" }
           if(ns){ document.layers[i+2].visibility = "hide"}          
 }
}