Make GUI button and attach HTML

I am trying to make a GUI button which shows up in the HUD and is a link to a website. How would I go about doing that. Mainly I am wondering what would i attach the scripting to? I am quite new to UNITY and your help is greatly appreciated. Thanks! Here’s the scripting that I am using:

#pramgma strict

function start (){

function on GUI(){
if (GUI.button(Rect(0.0200,100), “about”)){

If i understand, is something like this:

function OnGUI()
if (GUI.Button(new Rect(100,100,200,75),“About”))

so… you could drag this script to main camera.

Please, let me know if thats work