var current = 1;
function getNewQuote(size){
  //for initial loading
  if(size == undefined)
    size = 20; //meh
  var n = Math.floor(Math.random()*size) + 1;
  document.getElementById("quotes_page_" + current).style.display = "none";
  document.getElementById("quotes_page_" + n).style.display = "block";
  current = n;
}