/**************** isValitQty function for the required field. *****************/
function isValidQty( fieldIdToCheck ) {

    var qtyField         = Trim( document.getElementById( fieldIdToCheck ).value );
    var qtyAcceptedChars =/^[0-9]/;

    invalidQty = qtyField.match( qtyAcceptedChars );
    if ( invalidQty == null ) {
        eval( "alert" + getLanguage() +"InvalidQuantityCharsMSG()" );
        return false;
    }

    if ( qtyField < 1){
        eval( "alert" + getLanguage() +"InvalidQuantityCharsMSG()" );
        return false;
    }

    document.getElementById( fieldIdToCheck ).value = qtyField;
    return true;
}
/**************** Alert message for the invalid quantity. ***************/
function alertInvalidQuantityCharsMSG() {
    alert("Invalid quantity, must be 1 or more.  Please try again.");
}

function alertSPNInvalidQuantityCharsMSG() {
    alert("Invalid quantity, must be 1 or more.  Please try again.");
}