label="Select visited countries"
		      name="countriesNotVisitedId"
		      leftTitle="Not visited countries"
		      rightTitle="Visited Countries"
		      list="%{countriesNotVisited}"
		      listKey="id"
		      listValue="name"
		      headerKey="countryNotVisitedId"
		      headerValue="--- Please Select ---"

		      doubleName="countriesVisitedId"
		      doubleList="%{countriesVisited}"
		      doubleHeaderKey="countryVisitedId"
		      doubleHeaderValue="--- Please Select ---"
		      doubleListKey="id"
		      doubleListValue="name" />

<s:optiontransferselect
 label="Favourite Characters"
 name="leftSide"
 id="left"
 leftTitle="Left Title"
 rightTitle="Right Title"
 list="%{countriesNotVisited)"
 multiple="true"
 headerKey="headerKey"
 doubleList="{}"
 doubleId="right"
 doubleName="rightSide"
 doubleHeaderKey="doubleHeaderKey"
 doubleMultiple="true" />

function selectall()
 {
 var list = document.getElementById("right");
 for (var i = 0; i < list.options.length; i++)
   {
    alert(list.options[i].value)
    list.options[i].selected = true;
   }
 var form = document.getElementById("right");
 form.submit();
      return true;

}

<s:submit id="submitid" value="Submit" action="insert" onclick="selectall()"/>

private String leftSide;
private String rightSide;

public String getLeftSide() {
    return leftSide;
}

public String getRightSide() {
    return rightSide;
}

public void setRightSide(String rightSide) {
    this.rightSide = rightSide;
}

public void setLeftSide(String leftSide) {
    this.leftSide = leftSide;
}

System.out.println("right side list " + ad.getRightSide());

public void setCountriesVisitedId(String[] countriesVisitedId) {
    this.countriesVisitedId = countriesVisitedId;
 }