if(document.layers)
  viewvr='';
 else
  viewvr=null;
function view(file, width, height)
  {
   var tmp=new Image;
   tmp.src='/img'+file;
   if(document.layers)
     {
      if(viewvr.name=='view')
        viewvr.close();
     }
    else
     {
      if(viewvr!=null)
        {
         viewvr.close();
         viewvr=null;
        }
     }
   viewvr=window.open('../viewpic.html?'+file, 'view', 'channelmode=0,toolbar=0,location=0,directories=0,status=0,menubar=0,scrollbars=0,resizeable=0,width='+width+',height='+height+',left=20,top=20');
  }