getCellIndex(pRow,pCell) 

function html_HideBasedOnCheckBox(pThis,pThat){
	if(pThis.checked == true){
html_ShowCellColumn(pThat);		
	}else{
		html_HideCellColumn(pThat);		
	}
}

function getCellIndex(pRow,pCell){
	if (document.all){
		 [color=blue]for(var i= 0 ;i<pRow.cells.length;i++){[/color]
	   		if(pRow.cells[i] == pCell){l_Count = i}
			}
	}else{
		 l_Count = pCell.cellIndex; 
	}
  return l_Count;
}

function html_HideCellColumn(pId){
 [color=green]var l_Cell = $x(pId);[/color]
 var l_Table =  html_CascadeUpTill(l_Cell,'TABLE');
 var l_Rows = l_Table.rows;
 [color=red]l_CellI = getCellIndex(l_Cell.parentNode,l_Cell)[/color]
 for (var i= 0 ;i<l_Rows.length;i++){
	 html_HideElement(l_Rows[i].cells[l_CellI]);
	 }
 return;
}

function html_ShowCellColumn(pId){
 var l_Cell = $x(pId);
 var l_Table =  html_CascadeUpTill(l_Cell,'TABLE');
 var l_Rows = l_Table.rows;
 l_CellI = getCellIndex(l_Cell.parentNode,l_Cell)
 for (var i= 0 ;i<l_Rows.length;i++){
	 html_ShowElement(l_Rows[i].cells[l_CellI]);
	 }
 return;
 return;
}

function html_ToogleCellColumn(pId){
 var l_Cell = $x(pId);
 var l_Table =  html_CascadeUpTill(l_Cell,'TABLE');
 var l_Rows = l_Table.rows;
 html_ToggleElement(l_Cell)
 for (var i= 1 ;i<l_Rows.length;i++){
	 html_ToggleElement(l_Rows[i].cells[l_Cell.cellIndex]);
	 }
 return;
}

html_ShowCellColumn(pId)

html_HideCellColumn(pId)