Change 2 Color GIF image with PHP and Javascript

Hope This Makes Sense

[Daigenin]

I have a two color gif image and I want to replace one of the paletted colors in this image by clicking on some sort of button (using onmouseclick, or what not). Do I need PHP Image manipulating functions at all? If I do, how do I call the PHP code (which I thik is imagecolorallocate) from the javascript onmouseclick?

[hakre]

hi Daigenin,

you will defenetly need to use php for this. to have your php called, the javascript has to change the location of the document or you can do this with a form/submit.

let me give you one example: create a form, place the button as an image input element into it and set the forms' action to your php script. then if the user clicks on that button-image, the form will be submitted and your php can change the image. voila.

[c3oc3o]

If it's just one color you need to replace, you may want to consider making the color you need to replace transparent, and putting the image in a <div> whose background color (which is visible through the transparency) you can change easily in JS, without any server-side scripting...