Static Table Header, absolute THEAD

Left columnCenter ColumnRight Column
1secondthird
2secondthird
firstsecondthird
firstsecondthird
firstsecondthird
firstsecondthird
firstsecondthird
firstsecondthird
firstsecondthird
firstsecondthird
<style>
  #wrapper{
	background:tomato;
	padding-top:24px;
	float:left;
	position:relative;
  }
  #table_wrapper{overflow:auto;height:100px;float:left;}
  table{border-collapse:collapse;}
  td,th{border:1px solid green;width:120px;}
  thead{
	position:absolute;
	z-index:2;
	background:yellow;
	margin-top:-23px;
	float:left;
	height:24px;
  }
</style>

IE6


short crolling and refreshing the FF3