Overlapping an png/gif image over other image in a specific coordinate relative to the second image on php
<p>I have a background picture (lets call it B), i want to put an other image (a red dot gif or png) over B, in a specific coordinate of B. </p>

<p>For example, if B is 600x600px and Xcoor is 300 and Ycoor is 300, when the user load the php sript, B will be showed with a red dot in the center. Thanks for any help.</p>
