Untitled

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html>
	<head>
		<meta http-equiv="Content-Type" content="text/xhtml;charset=UTF-8"/>
		<title>Test windows.open</title>
	</head>

	<body>
		<script language="javascript">
			function openWindows(){
				window.open('http://www.google.fr');
			}
		</script>

		<?php
			if(!empty($_POST['test'])){
				echo "<script language=\"javascript\">window.open('http://www.google.fr');</script>";
			}
		?>

		<button type="button" onclick="JavaScript:openWindows()"> test javascript </button>

		<form method="post" action="index.php">
			<input type="text" name="test" value="test"/>
			<input type="submit" value="test php" style="background-color='black';color='white'"/>
		</form>

	</body>
</html>