function check_qty(txtqty) {
       if (emptyField(txtqty)) {
        alert('Please enter quantity');
        txtqty.focus();
        return false;
    }
    if (!isInt(txtqty.value)) {
        alert('Please enter Numeric Quantity');
        txtqty.focus();
        return false;
    }
    if (txtqty.value < 1) {
        alert('Quentity must be greater then zero.');
        txtqty.focus();
        return false;
    }

    if (!isInt(txtqty.value)) {
        alert('Please enter integer value.');
        txtqty.focus();
        return false;
    }
}
function cc_fields() {

    if (document.getElementById("payment_optionc").checked == true) {

        if (document.getElementById("ctl00_ContentPlaceHolder1_ddlcard").value == "0") {
            alert('Please Select Credit Card Type');
            document.getElementById("ctl00_ContentPlaceHolder1_ddlcard").focus();
            return false;
        }

        if (emptyField(document.getElementById("ctl00_ContentPlaceHolder1_txtccno"))) {
            alert('Please Enter Credit Card number');
            document.getElementById("ctl00_ContentPlaceHolder1_txtccno").focus();
            return false;
        }
        if (!isNum(document.getElementById("ctl00_ContentPlaceHolder1_txtccno").value)) {
            alert('Please Enter Credit Card Number in Numeric Value.');
            document.getElementById("ctl00_ContentPlaceHolder1_txtccno").focus();
            return false;
        }
        if (emptyField(document.getElementById("ctl00_ContentPlaceHolder1_txtcvvno"))) {
            alert('Please Enter Credit Card Verification Number ');
            document.getElementById("ctl00_ContentPlaceHolder1_txtcvvno").focus();
            return false;
        }
        if (!isNum(document.getElementById("ctl00_ContentPlaceHolder1_txtcvvno").value)) {
            alert('Please Enter Card Verification Number in Numeric Value.');
            document.getElementById("ctl00_ContentPlaceHolder1_txtcvvno").focus();
            return false;
        }

        var mydate = new Date();
        var year = mydate.getYear();
        if (year < 1000) year += 1900;
        var day = mydate.getDay();
        var month = mydate.getMonth() + 1;
        var daym = mydate.getDate();

        if (document.getElementById("ctl00_ContentPlaceHolder1_ddlmonth").value < month && document.getElementById("ctl00_ContentPlaceHolder1_ddlyear").value == year) {
            alert('Credit Card Expiration Month should not be less than current month');
            document.getElementById("ctl00_ContentPlaceHolder1_ddlmonth").focus();
            return false;
        }
    }
    else if (document.getElementById("payment_optionp").checked == true) {
        //paypal
    }
}
function Showhide() {
    if (document.aspnetForm.payment_optionp.checked == true) {
        document.getElementById("ctl00_ContentPlaceHolder1_trccinfo").style.display = 'none';
        //document.getElementById("ctl00_ContentPlaceHolder1_trpaypal").style.display = '';

    }
    else if (document.aspnetForm.payment_optionc.checked == true) {
        document.getElementById("ctl00_ContentPlaceHolder1_trccinfo").style.display = '';
        //document.getElementById("ctl00_ContentPlaceHolder1_trpaypal").style.display = 'none';

    }
}
function check_qty1() {
    var test = 0;
    var con = 2;
    for (var i = 0; i < document.aspnetForm.length; i++) {
        if (emptyField(document.getElementById("ctl00_ContentPlaceHolder1_dtgridCart_ctl0" + con + "_txtqty"))) {
            alert('Please enter quantity');
            document.getElementById("ctl00_ContentPlaceHolder1_dtgridCart_ctl0" + con + "_txtqty").focus();
            return false;
        }

        if (document.getElementById("ctl00_ContentPlaceHolder1_dtgridCart_ctl0" + con + "_txtqty").value < 1) {
            alert('Quentity must be greater then zero.');
            document.getElementById("ctl00_ContentPlaceHolder1_dtgridCart_ctl0" + con + "_txtqty").focus();
            return false;
        }

        if (!isInt(document.getElementById("ctl00_ContentPlaceHolder1_dtgridCart_ctl0" + con + "_txtqty").value)) {
            alert('Please enter integer value.');
            document.getElementById("ctl00_ContentPlaceHolder1_dtgridCart_ctl0" + con + "_txtqty").focus();
            return false;
        }


        con = con + 1;
    }
}