function FeeCalculate(textboxId){
    var ArrInput = document.getElementsByTagName("input");
    i = 0
    var Amount = 0
    for(i = 0; i < ArrInput.length; i++){
        if(ArrInput[i].type=="checkbox"){
            if(ArrInput[i].id.indexOf("rptMembershipFees") > -1 ){
                if (ArrInput[i].checked == true){
                    AmountControl = document.getElementById(ArrInput[i].id.replace(/checkbox1/i, "lblAmount"));
                    Amount += parseInt(AmountControl.innerHTML);
                }
            }
        }
    }
    document.getElementById(textboxId).value = Amount
}