div#tbl-container {
width: 830px;
overflow: auto;
}

thead th, thead th.locked	{
background: white;
position:relative;
cursor: default; 
}
	
thead th {
top: expression(document.getElementById("tbl-container").scrollTop-2); /*IE5+ only*/
z-index: 20;
}

thead th.locked {
z-index: 30;
}

td.locked,  th.locked{
left: expression(document.getElementById("tbl-container").scrollLeft); /*IE5+ only*/
position: relative;
z-index: 10;
}