// JavaScript Document
pf204652bottomLayer = document.getElementById('fl813691');
		var pf204652IntervalId = 0;
		var pf204652maxHeight = 150;//Chieu cao khung quang cao
		var pf204652minHeight = 20;
		var pf204652curHeight = 0;
		function pf204652show( ){
		  pf204652curHeight += 2;
		  if (pf204652curHeight > pf204652maxHeight){
			clearInterval ( pf204652IntervalId );
		  }
		  pf204652bottomLayer.style.height = pf204652curHeight+'px';
		}
		function pf204652hide( ){
		  pf204652curHeight -= 3;
		  if (pf204652curHeight < pf204652minHeight){
			clearInterval ( pf204652IntervalId );
		  }
		  pf204652bottomLayer.style.height = pf204652curHeight+'px';
		}
		pf204652IntervalId = setInterval ( 'pf204652show()', 5 );
		function pf204652clickhide(){
			document.getElementById('pf204652hide').style.display='none';
			document.getElementById('pf204652show').style.display='inline';
			pf204652IntervalId = setInterval ( 'pf204652hide()', 5 );
		}
		function pf204652clickshow(){
			document.getElementById('pf204652hide').style.display='inline';
			document.getElementById('pf204652show').style.display='none';
			pf204652IntervalId = setInterval ( 'pf204652show()', 5 );
		}
		function pf204652clickclose(){
			document.body.style.marginBottom = '0px';
			pf204652bottomLayer.style.display = 'none';
		}