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POhow to make alert prompt only display once?
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2013-09-24T18:39:24.263
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<p>I just want the alert apear once. </p> <pre><code><head> <script type="text/javascript"> var name; name = window.prompt("Enter name"); </script> </head> </code></pre> <p>this is in the body</p> <pre><code><div style="left:750px;top:60px;position:absolute;"> <script type="text/javascript"> document.writeln("Welcome "+name+" !"); //name from the request will be display here </script> </div> </code></pre> <p>==================================================================================</p> <p>also for the promotion which is popup always when page load</p> <p>here are for the promotion.html</p> <pre><code><body> <script type="text/javascript"> PopupCenter() //for name to be enter on request form </script> </body> </code></pre> <p>here are the promotion.html:-</p> <pre><code><body> <div id="promotion"> <table border="1"> <tr><td><p> <script language="JavaScript">  </script> </p></td></tr> </table> </div> </body> </code></pre> <p>in this .js file are for promotion.html</p> <pre><code> function PopupCenter(pageURL, title,w,h) { var left = (screen.width/2)-(w/2); var top = (screen.height/2)-(h/2); var targetWin = window.open ("promotion.html", "PROMOTION", 'toolbar=no, location=no, directories=no, status=no, menubar=no, scrollbars=no, resizable=yes, copyhistory=no, width='+580+', height='+485+', top='+100+', left='+400); } return sessionStorage.Popupccenter=1; </code></pre>
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<javascript><html>
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how to make alert prompt only display once?
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  POhow to make alert prompt only display once?
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1. COPlease make your code testable and post it on jsfiddle.net
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  POhow to make alert prompt only display once?
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  USMr. B.
2. CODid you try <body onLoad="javascript: ......"> ?
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  POhow to make alert prompt only display once?
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  USAlex Denysenko

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