var n = 20; 
var fibs = []; 
fibs[0] = 1; 
fibs[1] = 1; 
for (var i = 2; i < n; i++) { 	
	fibs[i] = fibs[i-1] + fibs[i-2]; 
} 
log(fibs);  
document.write('<ul><li>' + fibs.join('</li><li>') + '</li></ul>');