var called=false;      
var V16="Variable characters. Field size 16 chars -  small";
var V32="Variable characters. Field size 32 chars -  small";
var V64="Variable characters. Field size 64 chars - med small";
var V128="Variable characters. Field size 128 chars - med";
var V255="Variable characters. Field size 255 chars - largest varchar";
var ST2="Minimum size VARCHAR. For a 2-letter State field";
var IN12="Numbers Only. Field size 12 digits - small";
var IN32="Numbers Only. Field size 32 digits - large";
var TX="Text Field Limit 65535 Characters, about 65 pages";
var MTX="Text Field Limit 16777215 Characters - lots";
var LTX="Text Field Limit  is 4294967295. Very big field.";
var TMS="Auto TimeStamp on insert new record. YYMMDDHHmm";
var d1_flag;

function compute(form){
called=true;
if (form.TDS[0].selected){
        d1_flag="Description";
}
if (form.TDS[1].selected){
        d1_flag=V16;
}
if (form.TDS[2].selected){
        d1_flag=V32;
}
if (form.TDS[3].selected){
        d1_flag =V64;
}
if (form.TDS[4].selected){
        d1_flag =V128;
}
if (form.TDS[5].selected){
        d1_flag =V255;
}
if (form.TDS[6].selected){
        d1_flag =ST2;
}
if (form.TDS[7].selected){
        d1_flag =IN12;
}
if (form.TDS[8].selected){
        d1_flag=IN32;
}
if (form.TDS[9].selected){
        d1_flag =TX;
}
if (form.TDS[10].selected){
        d1_flag =MTX;
}
if (form.TDS[11].selected){
        d1_flag =LTX;
}
if (form.TDS[12].selected){
        d1_flag =TMS;
}

form.Desc1.value= d1_flag;
}