function highlightCell(colID,rowID,obj){
	document.getElementById(colID).style.visibility='visible';
	document.getElementById(rowID).style.visibility='visible';
	obj.style.backgroundColor='#DFDFE7';
}
function removeHighlight(colID,rowID,obj){
	document.getElementById(colID).style.visibility='hidden';
	document.getElementById(rowID).style.visibility='hidden';
	obj.style.backgroundColor='#FFF';
}