Iframe URL burst out

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ASP.NET

<iframe  runat="server" name="framecontent2" id="framecontent2" width="100%" url="http://bobj.test.bnymellon.net" height="485" scrolling="auto" style="border:0px;background-color:#ffffff;"></iframe>
 
<script language="javascript">
var prevent_bust = 0  
window.onbeforeunload = function() { prevent_bust++ }  
setInterval(function() {  
  if (prevent_bust > 0) {  
    prevent_bust -= 2
    window.top.location = 'myobjects.aspx' 
    // replace your iframe with link to it
  }
}, 1)

I am using this code to avoid bursting out jsp url from Iframe.The problem i am facing is, After this code being executed, I am unable to navigate to other pages. Please help me. Thanks in Advance.