how to make a simple php image indexer?

[darubillah]

hi,

 

i have an option of adding avaters in my site,

 

where users placed their avater link and it is shown.

 

Now i want a script which indexes images from a defined folder

 

an when users click on the images it will automaically add the link

 

of the image in the avater field

 

please help me

 

Thanks

Shayan