guys i need some help.

i have two pages,

the first page should display the list of  Class Name and checkboxes.

it will allow the user to choose "Classes" and display them in the second page when the user click the "Submit" button.

my problem is: the second page should be a pop-up window.

i know how to do it via the controller if second page is Not a new pop-up window,

by getting the list of checked Classes, and using something like "return Page.SecondPage".

is it possible to display PageReference in a new window?

or do we have to use Javascript to do this?

can anyone help me on this please?

or tell me which tutorial or Javascript guide i should read, as i know very little about Javascript.

thanks in advance.

first page:

<apex:page controller="CheckboxPassValue_controller" showHeader="false">
<apex:form >
	<apex:dataTable value="{!List}" var="l" >
		<apex:column headerValue="Class Name" >
			<apex:outputText value="{!l.cls.Name}" />
		</apex:column>
		<apex:column headerValue="Checkbox" >
			<apex:inputCheckbox value="{!l.selected}" />
		</apex:column>
	</apex:dataTable>
        <apex:commandButton value="Submit" action="PageTwo"/>
</apex:form>
</apex:page>

and this is how i did it using pagereference:

second page:

<apex:page controller="CheckboxPassValue_controller" showHeader="false">
<apex:form >
	<apex:dataTable value="{!Selected}" var="sel" >
		<apex:column headerValue="The List" >
			<apex:outputText value="{!sel.Name}" />
		</apex:column>
	</apex:dataTable>
</apex:form>
</apex:page>

 controller:

public with sharing class CheckboxPassValue_controller {
	public List<cClass> listOfCClass {get; set;}
	public List<SFDC_Class__c> listOfCls {get; set;}
	
	public List<cClass> getList() {
		if (listOfCClass == null) {
			listOfCClass = new List<cClass>();
			List<SFDC_Class__c> classList = [SELECT Id, Name 
                                                         FROM SFDC_Class__c LIMIT 5];
			for (SFDC_Class__c c : classList) {
				cClass cC = new cClass(c);
				listOfCClass.add(cC);
			}
		}
		return listOfCClass;
	}
	
	public List<SFDC_Class__c> getSelected() {
		listOfCls = new List<SFDC_Class__c>();
		for (cClass cC : getList()) {
			if (cC.getSelected() == true) {
				listOfCls.add(cC.getCls());
			}
		}
		return listOfCls;
	}
	
	public PageReference PageTwo() {
		return Page.CheckboxPassValue_pageTwo;
	}
	
	public class cClass {
  	    SFDC_Class__c cls = new SFDC_Class__c();
  	    public void setCls(SFDC_Class__c a) {
               this.cls = a;
            }
            public SFDC_Class__c getCls() {
               return cls;
            }
        
            Boolean selected;
            public void setSelected(Boolean f) {
               this.selected = f;
            }
            public Boolean getSelected() {
               return selected;
            }
        
            public cClass() {
               selected = false;  
            }
        
            public cClass(SFDC_Class__c c) {
               cls = c;
               selected = false;
            }
  	} 
}