Ciao
<script>
<!--
function copia(inClipboard) {
var tmp = eval("document."+inClipboard);
tmp.focus();
tmp.select();
testo=tmp.createTextRange()
testo.execCommand("Copy");
}
// -->
</script>
</head>
<body>
<form name="massimo">
<div align="center">
<textarea name="max" rows="5" cols="25"></textarea>
<input type="button" onclick="copia('massimo.max')" value="Copia nella Clipboard">
</div>
</form>
Per il paste
testo.execCommand("Paste");
Massimo