ht=screen.availHeight
wd=screen.availWidth

function goVis(swap){
var getV=document.getElementById(swap);
 if(getV.style.display=='none'){
  getV.style.display='block';
 }else{
  getV.style.display='none';
 }
}

function showWin(win){
 if(document.getElementById){
 document.getElementById(win).style.visibility='visible';
 }else{
  if (document.layers) {
   document.win.visibility='visible';
  }else{
   document.all.win.style.visibility='visible';
  }
 }
}
function hideWin(win){
 if(document.getElementById){
  document.getElementById(win).style.visibility='hidden';
 }else{
  if(document.layers){
   document.win.visibility='hidden';
  }else{
   document.all.win.style.visibility='hidden';
  }
 }
}