function insertSortCol(header,target)
{
  document.write('<img src="../../images/up.gif" align="left" style="cursor:hand;" ');
  document.write('onClick="sortByCol(\''+header+'\',false,\''+target+'\')" >');
  document.write('<img src="../../images/down.gif" align="left" style="cursor:hand;" ');
  document.write('onClick="sortByCol(\''+header+'\',true,\''+target+'\')" >');
}

function sortByCol(theName, desc,target)
{
	document.navigateFrm.action=target;
	document.navigateFrm.sort_col.value=theName;
	if (desc==true)
		document.navigateFrm.sort_desc.value="1";
	else
		document.navigateFrm.sort_desc.value="0";

	document.navigateFrm.submit();
}