<table border="0" width="280" id="myexample" style="border:5px solid green"> <tr> <td>اكتب محتويات الجدول هنا<br></td> </tr> </table> <script language="JavaScript1.2"> <!-- function flashit(){ if (!document.all) return if (myexample.style.borderColor=="green") myexample.style.borderColor="red" else myexample.style.borderColor="green" } setInterval("flashit()", 500) //--> </script>