var doit = true
function showm(ob,pict) {
  if(doit) {
    document.getElementById(ob).style.height = '100%'
    document.getElementById(pict).src = 'arrowl.gif'
    document.getElementById(pict).width = '6'
    document.getElementById(pict).height = '10'
    document.getElementById(ob).style.width = '100%'
    document.getElementById(pict).title="click to close"
    doit = false
  }
  else {
    document.getElementById(ob).style.height = '20'
    document.getElementById(pict).src = 'arrowd.gif'
    document.getElementById(pict).height = '6'
    document.getElementById(pict).width = '10'
    document.getElementById(pict).title="click to view"
    
    doit = true
  }
}