Rails spinoffs - Dec 2006 - Weird problem with script

First of all really new at this found Scriptalicious and have starting
using it primarily for the autocompleter .. I have started doing some
other work in a form client side that will fill in a multiple select
box depending on what is chosen from another multiple select box code
as follows

<script language="JavaScript" type="text/javascript">
function populate()
{
  var txtSelectedValuesObj
document.getElementById(''txtSelectedValues'');
  var selectedArray = new Array();
  var selObj = document.getElementById("D2");
  var i;
  var count = 0;
  for (i=0; i<selObj.options.length; i++) {
    if (selObj.options[i].selected) {
      selectedArray[count] = selObj.options[i].value;
      count++;
    }
  }

rows = <% =intRows %>;
suburbArray = new Array();
<%
strbsRS = "SELECT     * " & _
	"FROM         tbl_suburbs"

	set bsRS = Server.CreateObject("ADODB.recordset")
	set bsRS = bsConn.Execute (strbsRS)

		do while not bsRS.eof
		%>
		suburbArray[<% =bsRS("id") %>] = ''<%
=bsRS("districtid") %>, <%
=bsRS("id") %>, <% =bsRS("suburb") %>''
		<%
		bsRS.movenext
		Loop
		bsRS.close
%>
i = 0;
for (x in suburbArray)
{
	splitstring = suburbArray[x].split(", ")
	for (y in selectedArray)
	{
		if(selectedArray[y] == splitstring[0])
		{
		document.frm_master.D3.options[i] = new Option(splitstring[2],
splitstring[1], false, true);
		i = i + 1;
		}
		if (i == 0)
		{
		document.frm_master.D3.options.length=0;
		}
	}
}
}
</script>

It works perfectly ok without calling the prototype.js script but fails
to run correctly at least in ie with the following error ''Object
doesn''t support this property or method'' Being new to this I
am not
sure how or what is causing it


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Found the problem ..
i = 0;
for (x=1; x<=suburbArray.length; x++)
{
	splitstring = suburbArray[x].split(", ")
	for (y in selectedArray)
	{
		if(selectedArray[y] == splitstring[0])
		{
		document.frm_master.D3.options[i] = new Option(splitstring[2],
splitstring[1], false, true);
		//document.write(splitstring[0] + '' '' + splitstring[1] +
'' '' +
splitstring[2] + '' '' + i + ''<br>'')
		i++;
		}
		if (i == 0)
		{
		document.frm_master.D3.options.length=0;
		}
	}
}
the above fixed it, something to do with using a regular array not
working with prototye.js .. that being said new at javascript would be
good if anyone reads this and wants to advise if improvements could be
made on this??

cheers


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