function setDynaList(arrDL){

 var oList1 = document.forms[arrDL[2]].elements[arrDL[1]];
 var oList2 = document.forms[arrDL[4]].elements[arrDL[3]];
 var arrList = arrDL[5];
 
 clearDynaList(oList2);

 
 if (oList1.selectedIndex == -1){
  oList1.selectedIndex = 0;
 }

 populateDynaList(oList2, oList1[oList1.selectedIndex].value, arrList);
 return true;
}
 
function clearDynaList(oList){

 for (var i = oList.options.length; i >= 0; i--){
  oList.options[i] = null;
 }
 
 oList.selectedIndex = -1;
}
 
/*This is a modified function from the original MM script. Mick White 
added the first line of oList so there would be an initial selection.
Needed this if there is only 1 child menu item, otherwise, the single
child menu item would be already hihghlighted and you can not select 
it. Also good for validation purposes so you can set the .js 
validation to not allow the first selection.
*/

function populateDynaList(oList, nIndex, aArray){
oList[oList.length]= new Option("any");
 for (var i = 0; i < aArray.length; i= i + 3){
  if (aArray[i] == nIndex){
   oList.options[oList.options.length] = new Option(aArray[i + 1], aArray[i + 2]);
  }
  //oList.size=oList.length //You need to comment out this line of the function if you use this mod
 }

//A quick mod here, I changed the ==0 to ==1 so that the length 
//takes into account the Please select option from above.
 if (oList.options.length == 0){
  oList.options[oList.options.length] = new Option("any");
 }
 oList.selectedIndex = 0; 
}