Oricum, se vede ca nu ai cunostiinte de HTML. Ar trebui sa mai studiezi.
Cod: Selectaţi tot
<html>
<head>
<script type="text/javascript">
function alertValue()
{
window.location.href='http://phpbb.ro/search.php?st=0&sk=t&sd=d&sr=posts&keywords=' + document.getElementById('keywords').value
}
</script>
</head>
<body>
<input name="keywords" id="keywords" type="text" maxlength="128" title="Cautare dupa cuvinte cheie" class="inputbox search" value="Cautare…" onclick="if(this.value=='Cautare…')this.value='';" onblur="if(this.value=='')this.value='Cautare…';" onKeyDown="if(event.keyCode==13) alertValue();" style="background-color:transparent;" />
</body>
</html>
