function main(simpleReport, simpleReportContext) {  
	var headerRows = simpleReport.grid.getHeaderRows();   
    if(headerRows>1){
        var arr = domutils.getElementsByClassName("table-grid-top-span-sp");
        for(var i=0;i<arr.length;i++){
            arr[i].style.position = "";
        }
    }   
    simpleReport.grid.tBody.firstChild.style.display = "none"; 
}