var IE6 = navigator.appVersion.indexOf("MSIE 6") != -1;
var idToHideOnClick_;

function get(id) { return document.getElementById(id); }

function setLocByEvent(event, obj, xoff, yoff) {
  if (xoff == null) xoff = 0;
  if (yoff == null) yoff = 0;
  obj.style.left = ((event.x == null
                    ? event.pageX : event.x+document.body.scrollLeft) + 10 + xoff) + "px";
  obj.style.top = ((event.y == null
                   ? event.pageY : event.y+document.body.scrollTop) + yoff) + "px";
}

function changePage(key, args) {
  args = args == null ? "" : "?" + args;
  form_.action = urlStart_ + "/" + key + args;
  form_.submit();
  form_.target = null;
}
function call(meth, args) {
  if (args == null) args = "";
  changePage(pageKey_ + "." + meth + "?" + args);
}

function nada() {
}

function submitToInnerFrame() {
  form_.target=hiddenFrameName_;
}

function setInnerFrameLoc(loc, w, h, x, y) {
  submitToInnerFrame();
  setInnerFrameDim(w, h, x, y);
  sub.location=loc;
  form_.target = null;
}

function setInnerFrameDim(width, height, left, top) {
  var p = get(hiddenFrameName_);
  p.style.display='';
  p.style.width=width + "px";
  p.style.height=height + "px";
  
  //if it's -1, then we just center the frame on the page
  if (left == -1) left = (document.body.clientWidth/2) - (width/2);
  if (top == -1) top = (document.body.clientHeight/2) - (height/2) + document.body.scrollTop;
  p.style.top  = top + "px";
  p.style.left = left + "px";
  
}

function closeIFrame() {
  var o = parent.document.getElementById(hiddenFrameName_);
  if (o == null) return false;
  if (o.style.display == 'none') return false;
  o.style.display='none';
  o.location='/blank.html';
  return true;
}

function hide(id) {
  if (id == null) return;
  var o = get(id);
  if (o == null) return;
  o.style.display="none";
}

function show(id) {
  var o = get(id);
  if (o == null) return;
  o.style.display="";
}

function showTip(event, msg, xoff, yoff) {
  if (msg == null || msg == "") return;
  var div = get("tooltip");

  div.innerHTML = "<table cellpadding=4><td>" + msg + "</td></table>\n";
  show("tooltip");
  setLocByEvent(event, div, xoff, yoff);

}

function hideTip() {
  hide("tooltip");
}

function focus(name) {
  eval("form_." + name).focus();
}

function setIdToHideOnClick(id) {
  window.setTimeout("idToHideOnClick_ = '" + id + "';", 200);
}

document.onclick = hideExtraComp;
function hideExtraComp(event) {
  if (idToHideOnClick_ == null) return true;
  id_ = null; //so we don't think PD is open
  hide(idToHideOnClick_);
  idToHideOnClick_ = null;
  return true;
}

function closeSelectBox() {
  if (idToHideOnClick_ == null) return false;
  return hideExtraComp(null);
}

var scrollFn;
if (IE6) {
scrollFn = function scrollEvent(event) {
   var div = get("bot");
   if (div == null) return;
   if (div.style.bottom == "0px") div.style.bottom = "-1px";
   else div.style.bottom = "0px";
}} else if (document.doctype == null) {
scrollFn = function scrollEvent(event) {
  var div = get("bot");
  if (div == null) return;
  var scroll = document.body.scrollTop;
  div.style.bottom=(-1*scroll) + "px";
}} else {
scrollFn = function scrollEvent(event) {
  //html5 support
  var div = get("bot");
  if (div == null) return;
  var scroll = document.documentElement.scrollTop;
  div.style.bottom=(-1*scroll) + "px";
}}
window.onscroll = scrollFn;

function keyPressed(e, fn) {
  if (fn == null) fn = "doDefaultAction()";
  var code = e.keyCode != null ? code = e.keyCode : e.which;
  if (code == 13) {
    var src = e.srcElement == null ? e.target : e.srcElement;
    if (src.type == "textarea") return true;
    e.cancelBubble=true; //this is key to avoiding beeps
    eval(fn);
    return false; 
  } else if (code == 27) { //ESC
    if (!closeIFrame() && !closeSelectBox()) {
      try {
        updateRankings(e, false, true);
      } catch (x) {
        //not on scores page
      }
    }
  }
  return true;
}

var t = get("banner");
if (t != null) t.style.height=document.body.clientHeight-45;