// Download historical price data from Yahoo
function main()
{
  int id = http_post("http://ichart.finance.yahoo.com/table.csv?s=AAPL&c=1980",0);
  if(!id) return;
  while(!http_status(id))
    if(!wait(100)) return; // wait for the server to reply
  int length = http_status(id);
  if(length > 0) { //transfer successful?
    string content = (string)malloc(length);
    http_result(id,content,length); // store price data in large string
    file_write("History\AAPL.csv",content,length);
    free(content); // release the string
  }
  http_free(id); //always clean up the id!
}