Dropdownlist which queries database and searches images from folder.

[aeonius]

Hey guys, i'm new to this site and would need some help with coding. 

So i'm making a car part website which should has brand/model search. It's a dropdown search which will get the brand / model from database and should display all the parts for that exact model, from folder. 

Database structure which i have is id, master, name. ( Here's some pictures to clear out what i'm doing. http://imgur.com/a/7XwVd ) 

So the problem is that it does not get the images from folder named ex: *_audi_a3.jpg. 

And link to codes what have been written already.  

 

Parts.php: http://pastebin.com/q6vdypge 

Update.php: http://pastebin.com/DymhGQ17

Search_images.php: http://pastebin.com/LF5Q0i8f

Core.js: http://pastebin.com/bgc0y4TS

 

I don't know what's wrong with it sadly. One thing i noticed when i used firebug it gives error on category when searching error:true.

Hope you guys understand what i mean here, and also all help is appreciated.

And move this post if it's in wrong place. 

Thanks!