How to Zoomin from clientside

I have modified your code by taking a hidden variablle and give a id to each time it is looping. I also have modify the java script function.Try it and if you have any doubt please tell me.The bold letters are added by me to work zoomin from client side.

string strSQL = "SELECT distinct bdm_seq_BuildingId,bdm_txt_BuildingType, bdm_txt_Caption, bdm_num_Left, bdm_num_Top,bdm_num_Length, bdm_num_Breadth, bdm_num_FontSize FROM BuildingDimensions WHERE bdm_num_PartId = " + Session["Id"] + " ";

DataSet dstData = new DataSet();

objDataAccess.GetDataSet(ref dstData, strSQL, "Event");

string strBuildingNo;

for (int intIndex = 0; intIndex < dstData.Tables["Event"].Rows.Count; intIndex++)

strBuildingNo = dstData.Tables["Event"].Rows[intIndex]["bdm_seq_BuildingId"].ToString();

dblBuildLeft = Convert.ToDouble(dstData.Tables["Event"].Rows[intIndex]["bdm_num_Left"]) * 38 * 0.0576;

dblBuildTop = Convert.ToDouble(dstData.Tables["Event"].Rows[intIndex]["bdm_num_Top"]) * 38 * 0.0576;

dblBuildWidth = Convert.ToDouble(dstData.Tables["Event"].Rows[intIndex]["bdm_num_Length"]) * 38 * 0.0576;

dblBuildHeight = Convert.ToDouble(dstData.Tables["Event"].Rows[intIndex]["bdm_num_Breadth"]) * 38 * 0.0576;

strCaption = dstData.Tables["Event"].Rows[intIndex]["bdm_txt_Caption"].ToString();

hidSecLBreadth.Value = hidSecLBreadth.Value + "

hidSecLBreadth.Value = hidSecLBreadth.Value + "

if (hidBuildingNumbers.Value == "")

else

hidBuildingNumbers.Value = hidBuildingNumbers.Value + "," + strBuildingNo;