Add time function to show intro javascript

Want to add a time duration function to the below script. On 5 seconds display then hide iframe.
<script>
function showintro() {
document.getElementById('if1').style.display='';
document.getElementById('if1').src='http://clubtuki.com';
}
</script>
 
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Untitled Document</title>
</head>
<body onload="javascript:showintro()">
<iframe id="if1" src="" style="display:none;" scrolling="no" border="0" frameborder="0" height="250" width="500" marginwidth="0" marginheight="0">
</iframe>

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jmanstormAsked:
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Michel PlungjanIT ExpertCommented:
add after
document.getElementById('if1').style.display='';

setTimeout("document.getElementById('if1').style.display='none';",5000)
0

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jmanstormAuthor Commented:
How could I choose to display a div or new iframe in same location at the end of five seconds.
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Multimedia Programming

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