function ismaxlength(obj){
var mlength=obj.getAttribute? parseInt(obj.getAttribute("maxlength")) : ""
if (obj.getAttribute && obj.value.length>mlength)
obj.value=obj.value.substring(0,mlength)
}

function Dollar (val) {  // force to valid dollar amount
var str,pos,rnd=0;
  if (val < .995) rnd = 1;  // for old Netscape browsers
  str = escape (val*1.0 + 0.005001 + rnd);  // float, round, escape
  pos = str.indexOf (".");
  if (pos > 0) str = str.substring (rnd, pos + 3);
  return str;
}

function ReadForm (obj1, tst) { // process radio and checkbox
var i,j,amt=0,des="",obj,pos,val,tok,tag,
  op1a="",op1b="",op2a="",op2b="",itmn="";
var ary = new Array ();
  if (obj1.baseamt) amt  = obj1.baseamt.value*1.0;  // base amount
  if (obj1.basedes) des  = obj1.basedes.value;  // base description
  if (obj1.baseon0) op1a = obj1.baseon0.value;  // base options
  if (obj1.baseos0) op1b = obj1.baseos0.value;
  if (obj1.baseon1) op2a = obj1.baseon1.value;
  if (obj1.baseos1) op2b = obj1.baseos1.value;
  if (obj1.baseitn) itmn = obj1.baseitn.value;
  for (i=0; i<obj1.length; i++) {  // run entire form
    obj = obj1.elements[i];        // a form element
    if (obj.type == "radio") {     //  and radios
      if (obj.checked) {           // did user check it?
        val = obj.value;           // the value of the selection
        ary = val.split (" ");          // break apart
        for (j=0; j<ary.length; j++) {  // look at all items
// first we do single character tokens...
          if (ary[j].length < 2) continue;
          tok = ary[j].substring (0,1); // first character
          val = ary[j].substring (1);   // get data
          if (tok == "@") amt = val * 1.0;
          if (tok == "+") amt = amt + val*1.0;
          if (tok == "%") amt = amt + (amt * val/100.0);
          if (tok == "#") {             // record item number
            if (obj1.item_number) obj1.item_number.value = val;
          ary[j] = "";                // zap this array element
          }
// Now we do 3-character tokens...
          if (ary[j].length < 4) continue;
          tok = ary[j].substring (0,3); // first 3 chars
          val = ary[j].substring (3);   // get data
          if (tok == "s1=") {           // value for shipping
            if (obj1.shipping)  obj1.shipping.value  = val;
            ary[j] = "";                // clear it out
          }
          if (tok == "s2=") {           // value for shipping2
            if (obj1.shipping2) obj1.shipping2.value = val;
            ary[j] = "";                // clear it out
          }
        }
        val = ary.join (" ");           // rebuild val with what's left

        tag = obj.name.substring (obj.name.length-2);  // get flag
        if      (tag == "1a") op1a = op1a + " " + val;
        else if (tag == "1b") op1b = op1b + " " + val;
        else if (tag == "2a") op2a = op2a + " " + val;
        else if (tag == "2b") op2b = op2b + " " + val;
        else if (tag == "3i") itmn = itmn + " " + val;
        else if (des.length == 0) des = val;
        else des = des + " " + val;
      }
    }
  }
// Now summarize stuff we just processed, above
  if (op1a.length > 0) obj1.on0.value = op1a;
  if (op1b.length > 0) obj1.os0.value = op1b;
  if (op2a.length > 0) obj1.on1.value = op2a;
  if (op2b.length > 0) obj1.os1.value = op2b;
  if (itmn.length > 0) obj1.item_number.value = itmn;
  obj1.item_name.value = des;
  obj1.amount.value = Dollar (amt);
  if (obj1.tot) obj1.tot.value = "$" + Dollar (amt);
}