click to enlarge image

Already create those scripts.
/WordPress/scripts/image_large.js
/WordPress/scripts/image_large.css
/WordPress/scripts/footer_added.txt
footer.php

The old one is based on height:

Changed to base on Width:

Now when posting image, use this way:

<img  src=” ”   width=”600″  style=”cursor:pointer” onclick=”showImage(‘ ‘);” />

<img  src=”img_url ”   width=”600″  style=”cursor:pointer” onclick=”showImage(‘ img_url’);” />
Example:
<img  src=”http://…/aa.jpg ”   width=”600″  style=”cursor:pointer”
onclick=”showImage(‘http://../aa.jpg ‘);” />