var int=self.setInterval("show()",10)
var height1 = 0
function show()
  {  if (height1 == 149) { int = window.clearInterval(int); document.getElementById('line').style.height = "150px"; } height1 += 1; document.getElementById('line').style.height = (height1)+'px'; }
var height2 = 150
function close() {
var int2=self.setInterval("abc()",1)
}
function abc()
  {
  if (height2 == 2) { int2 = window.clearInterval(int2);   document.getElementById('line').style.height = "0px";  } 
  height2 -= 2
  document.getElementById('line').style.height = (height2)+'px';
  }