function reloadGrid(postData){

		$('#gridTable').jqGrid('GridUnload');

		var newOption = $.extend(true,{},gridOption);

		newOption.postData = postData;

		if(postData.pointInfos){

			var pointInfos = $.parseJSON(postData.pointInfos);

			var pointNames = [],pointCols = [];

			for(var prop in pointInfos){

				pointNames.push(pointInfos[prop]);

			}

			for(var i = 0;i < pointNames.length;i++){

				var name = pointNames[i];

				pointCols.push({

					label : name,

					name : name,

					sortable : false,

					width : 80

				});

			}

		}

		newOption.colModel = addColModel(pointCols);

		$('#gridTable').jqGrid(newOption);

	}