การใส่ watermark ด้วยโค้ดภาษา php หรือ javascript ครับ

<?php
	echo "<img src=MyResize/image.png>";
	$myImage = imagecreatefromjpeg('mygirl.jpg');
	$myCopyright = imagecreatefromjpeg('thaicreate.jpg');


	$destWidth = imagesx($myImage);
	$destHeight = imagesy($myImage);
	$srcWidth = imagesx($myCopyright);
	$srcHeight = imagesy($myCopyright);

	$destX = ($destWidth - $srcWidth) / 2;
	$destY = ($destHeight - $srcHeight) / 1;
	$white = imagecolorexact($myCopyright, 255, 255, 255);
	imagecolortransparent($myCopyright, $white);

	imagecopymerge($myImage, $myCopyright, $destX, $destY, 0, 0, $srcWidth, $srcHeight, 50);


	imagejpeg($myImage,"MyResize/image.png");
	imagedestroy($myImage);
	imagedestroy($myCopyright);
?>