I like to do the following: When a selection in a select box changes,
display a value from a mapped property in a textarea field. To do this I
need to get the currently selected value of the ComboBox by calling some
javascript function in the onchange event of SELECT.

This is my JSP code:

<html:form action="/startReportWizard" focus="reportKind">
 <table border="0" width="500" align="center">
  <TR>
  <TD width=250><bean:message key="GenerateReportPage1.Selection" />
  <TD width=*>
    <html:select property="reportKind"
onchange="displayReportDescription()">              <html:optionsCollection
name="reportDescriptions" value="value.report_ID"
label="value.report_Name"/>
    </html:select>
  </TD>
 </TR>
 <TR>
  <TD><bean:message key="GenerateReportPage1.Description" /></TD>
  <TD>
    <html:textarea property="reportDescription" rows="3"
disabled="false"/></TD>
 </TR>
....

The javascript function displayReportDescription() returns the currently
selected value of the ComboBox (Select list)

In the form bean I have a Hashtable as follows:

private Hashtable<String, ReportDescription> availableReports;

public synchronized Hashtable<String, ReportDescription>
getAvailableReports()
{
 return availableReports;
}

public synchronized void setAvailableReports(
   Hashtable<String, ReportDescription> availableReports)
{
 this.availableReports = availableReports;
}

public ReportDescription getValue(String key)
{
 return availableReports.get(key);
}


With these getters I should be able to do the following in my JSP to
retrieve a specific value from my Hashtable:

<html:textarea property="value(name)"/>
where name is the VALUE of the currently selected Item of the Select box.

So inside my javascript function I should do something like:

function displayReportDescription()
{
 var ComboBox=document.forms[0].elements["reportKind"];
 var selected = ComboBox.selectedIndex;
 var selectedValue = ComboBox.options[selected].value;
 document.forms[0].elements["reportDescription"].value = THE VALUE
FROM MY HASHTABLE IN MY FORMBEAN!!
}

The question is how can I call the
getAvailableReports().getValue(selectedValue) of my form bean from
inside the above JavaScript????

Any help would be greatly appreciated.

Tom



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