Iframe adaptive highly compatible with ie, firefox multi-browser_Experience exchange

<script> <BR> function SetCwinHeight(){ <BR>  var bobo=document.getElementById("bobo"); //iframe id <BR>  if (document.getElementById){ <BR>   if (bobo && !window.opera){ <BR>    if (bobo.contentDocument && bobo.contentDocument.body.offsetHeight){ <BR>     bobo.height = bobo.contentDocument.body.offsetHeight; <BR>    }else if(bobo.Document && bobo.Document.body.scrollHeight){ <BR>     bobo.height = bobo.Document.body.scrollHeight; <BR>    } <BR>   } <BR>  } <BR> } <BR></script>