function numSelectBox(selectName,minNum,maxNum) {
    var numSBox = '<select name="'+selectName+'">';
    for(var i=minNum;i<=maxNum;i++) {
        var optItem = '<option value="'+i+'">'+i+'</option>';
        numSBox += optItem;
    }
    numSBox += '</select>';

    document.write(numSBox);
}