current_div_id='pPicName1';
dom=(document.getElementById)?true:false;

function SetDiv(new_div_id) {
  eval("new_div=dom ? document.getElementById('"+new_div_id+"') : document.all."+new_div_id+";");
  eval("current_div=dom ? document.getElementById('"+current_div_id+"') : document.all."+current_div_id+";");
  current_div.style.display= current_div.style.display=='block' ? 'none' : 'block';
  new_div.style.display= new_div.style.display=='block' ? 'none' : 'block';
  current_div_id=new_div_id;
}