How to detect if the browser support flash?

Question

I just have two version of my site

one is design for Flash supported (like Desktop) and the other one is for Mobile devices

I just want to know if I can detect and if is true (support) they will stay the same website assuming is http://mywebsite.com but the link will display http://mywebsite.com/?flash=true and if is not support I will redirect them to http://mywebsite.com/?flash=false

sorry for the dumb question you don't have to give me an answer but if you can provide me some sort of resource where can I dig the information and study about it myself

Thanks.

Answer 1

This javascript code fragment will do the job:

var _flash_installed = ((typeof navigator.plugins !== "undefined" && typeof navigator.plugins["Shockwave Flash"] === "object") || (window.ActiveXObject && (new ActiveXObject("ShockwaveFlash.ShockwaveFlash")) !== false));