public void OpenWindow(string redirect /* in */, string attributes /* in */)  
    {
 	    StringBuilder txtScript = new StringBuilder();
 	    txtScript.Append("<script language=javascript>\n");
 	    txtScript.Append(" window.open ('" + redirect + "',null , '" + attributes + " ');" + "\n");
 	    txtScript.Append("</script>");
 	    this.Page.RegisterStartupScript("MsgBox",txtScript.ToString());  
    }

    protected void btnResult_Click(object sender, EventArgs e)
    {
        OpenWindow("reportresult.aspx", "");
    }

hello

the problem is that atlas will only load the script nodes that have the type set to text/javascript. so, your best option is to remove the <script> elements from the string and use the following to register the jscript ion the page:

this.Page.ClientScript.RegisterStartupScript( this.GetType(), "myKey", txtScript.ToString(), true );