function changeCell(obj){
	if(obj)  {
		obj.style.backgroundColor = "#F6F6BF";
		obj.style.border  = "1px dashed black";
	}
}

function restoreCell(obj){
	if(obj)  {
		obj.style.backgroundColor = "#F6EFC9";
		obj.style.border  = "1px dotted #600";

	}
}