function appendcolumn() {
  heightrand = document.getElementById('right').offsetHeight
  heightmitte = document.getElementById('content').offsetHeight
  if (heightrand > heightmitte)
  	height = heightrand
  else 
    height = heightmitte
  document.getElementById('left').style.height = height+'px'
  document.getElementById('laydown').style.height = height+'px'
  document.getElementById('right').style.height = height+'px'
}
function addtarget(obj,target) {
  obj.target = target
}