<html>
<head>
<script language='Javascript'>
function openWindows()
{
window.open('http://www.google.com', 'Window1', 'toolbar,width=150,height=100');
window.open('http://www.microsoft.com', 'Window2', 'toolbar,width=150,height=100');
}
</script>
</head>
<body>
<a href = "javascript:openWindows()">click here</a>
</body>
</html>