Notes

var MAX = 1000;
/*Commenting this program out because I know future me is going to have to help someone.
and when I look at this, I'm going to be like, the heck did I do. Why is this here.
Why did I have to explain it to someone. Why couldn't it have been the me who actually
isn't tired. Like dang. >.>
*/
function start(){
var cur = 1; //current number. Used for checking if the current number > MAX.
var prevNum = 1; //last number. Actually. I think they alternate. lol
var prevNum2 = 0; //last last number. Take note of above.
while (prevNum + prevNum2 < MAX) {
if (cur > MAX) { //self explanatory right? No? mk.
break; //Ouch. >.> These comments are what keep me sane.
}
cur = prevNum + prevNum2; //the next fib number is the last number + the last last number.
prevNum = prevNum2; //reassigns itself to the last last number.
prevNum2 = cur; //This reassigns itself to cur. Thus changing itself to the last number.
println(cur); //I'm pretty mad that this isn't console.log. I mean seriously. The heck.
}
}