open popUp inside a popUp window

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ASP.NET

Javascript

I am really new to this and almost have no time with JavaScript but i have learned I need some to make a functional website. I am currently writing a help desk project and i have made the Ticket page a popup using the window.open method in JavaScript so the ticket could be a separated page in order to still utilize the help desk. On the ticket page when a customer is chosen and all fields are populated I have a Dev Express Grid view That populates itself with that customers ticket history. Here in lies the issue, I added column to the grid that would able a person to have a quick view of the ticket issue and solution. I made this work on my test page and even tried it on another grid in my project but it will not work on the ticket page and I suspect this is due to it being a popup page itself.

The ticket page is opened using:

Java-

<script type="text/javascript">
 
      function popUp0(URL) {
            day = new Date();
            id = day.getTime();
            eval("page" + id + " = window.open(URL, '" + id + "', 'toolbar=0,scrollbars=1,location=0,statusbar=0,menubar=0,resizable=1,width=1050,height=650,left = 710,top = 290');");
      }  
 
      // -->
  
</script>
 
ASP - i am using a button:


<dx:ASPxButton ID="ASPxButton1"  runat="server" CssClass="btnheader"
                              EnableDefaultAppearance="False"  
                              PostBackUrl="javascript:popUp1('Http://yadayada.aspx')"
                              Text="New Ticket">

Once this page is open the customer is chosen and the Dx grid is filled, here i added:

JavaScript ( also passing the id column):

<script type="text/javascript">
 
                  // This is for the pop up on the Customer ticket history
            function ShowDetailPopup(issues_id) {
                  popup.SetContentUrl('TicketViewFast.aspx?id=' + issues_id);
                  popup.Show();
            }
</script>

ASP

<dx:GridViewDataHyperLinkColumn FieldName="issues_id" ReadOnly="True" VisibleIndex="0">
     <PropertiesHyperLinkEdit NavigateUrlFormatString="javascript:ShowDetailPopup('{0}');"
                                            Text="View">
        </PropertiesHyperLinkEdit>
</dx:GridViewDataHyperLinkColumn>

And of coarse on both pages I have a Dev express popup control.

Any thoughts of why i am not allowed to open this popup in the other popup?