function display(item){
document.getElementById("abouttable").style.display="none"
document.getElementById("aboutlink").href="javascript:display(1)"
 if (item==1){
 document.getElementById("aboutlink").style.textdecoration="none"
  document.getElementById("abouttable").style.display=""
  document.getElementById("aboutlink").href="javascript:hide(1)"}
}
function hide(item){
 if (item==1){
  document.getElementById("abouttable").style.display="none"
  document.getElementById("aboutlink").href="javascript:display(1)"}
}