The Multiple directive tells the listbox too allow the user multiple selections either using the Control Mouse click combination or Shift Mouse Click top and bottom.
<pre>
<form name="frmMain">
<select name="lbxMultiValues" style="width=120px" 
size=4 MULTIPLE id="lbxMultiValues">
<option value=1>A
<option value=2>B
<option value=3>C
<option value=4>D
<option value=5>E
<option value=6>F
<option value=7>G
<option value=8>H
<option value=9>I
<option value=10>J
<option value=11>K
<option value=12>L
<option value=13>M
<option value=14>N
<option value=15>O
<option value=16>P
<option value=17>Q
<option value=18>R
<option value=19>S
<option value=20>T
<option value=21>U
<option value=22>V
<option value=23>W
<option value=24>X
<option value=25>Y
<option value=26>Z
</select>
<br>
<input type=button name=cmdAction value="Press to Count" OnClick="
var i;
var iCount;

iCount=0;
//alert(frmMain.lbxMultiValues.length);
for (i=0; i< 26; i++)
{
	if (frmMain.lbxMultiValues.options[i].selected==true)
	{
	iCount+=1;
	}
}
alert('You selected '+iCount+' items');
">
</form>
<h3>ASP Code</h3>
		iCount=request("lbxMultiValues").count		
		sReportBuffer=""
		for i=1 to iCount
			iValue=request("lbxMultiValues")(i)
			if iValue<>"" and iReportId<>"-1" then
				if sReportBuffer="" then
				sReportBuffer=sReportBuffer & "in ('" & ucase(trim(iValue)) & "'"
				else
				sReportBuffer=sReportBuffer & ",'" & ucase(trim(iReportId)) & "'"
				end if
			end if
		next