var doit = true
function showm(ob,pict) {
  if(doit) {
    document.getElementById(ob).style.height = '600'
    document.getElementById(pict).src = 'magnifying-glass-black-handle.jpg'
    doit = false
  }
  else {
    document.getElementById(ob).style.height = '40'
    document.getElementById(pict).src = 'magnifying-glass-black-handle.jpg'
    doit = true
  }
}