Displaying a string using window.open()

Question

I have a page load event on view side where i want to display a string using window.open(). Since window.open() cannot be written directly under page_load I am building a string which contains window.open() syntax and which is passed further to RegisterStartupScript(). Actual URL passed to window.open will call a post method which will provide the data required to be printed.

<script runat="server">
  protected void Page_Load(object sender, EventArgs e)
  {

    if (ViewData["FileContents"] != null)
    {
        var viewDataValue = ViewData["FileContents"];
        string js = "<script language='javascript'>";
        js += "window.open('/Study/StudyConfiguration" + ViewData["FileContents"] + "','name','dialogWidth:100px');";
        js += "</" + "script>";
        RegisterStartupScript("StartupScript",js);
    }
  }
</script>

Whats happening right now with this is, only dialog gets displayed and not the string. Do let me know any correction to be made to solve the problem.

Thanks, Kapil