Pop-Up da Submit/Button

[cavicchiandrea]

Prova così

<script language="javascript">            
function f(pagina,w,h) {                 
var w = 600;                 
var h = 350;                 
var t = Math.floor((screen.height-h)/2);                 
var l = Math.floor((screen.width-w)/2);                 
var stile = "top="+t+", left="+l+", width="+w+", height="+h+", status=no, menubar=no, toolbar=no scrollbars=no";                 
window.open(pagina, 'log', stile);            
}
</script>

<form action=login.php method="post" target="log">    <fieldset>
<input type='button' name="Accedi" value="Accedi" onClick='f();'>
</fieldset>
</form>