Ставим в body: Code
<table border=0 width=270 id="myexample"
style="border:1px solid red"><tr>
<td>Ваш текст<br></td></tr></table>
<script language="JavaScript">
<!--
function flashit()
{
if (!document.all)return;
if (myexample.style.borderColor==
"red")myexample.style.borderColor="black";
else myexample.style.borderColor=
"red"}setInterval("flashit()", 1000)
//-->
</script>
