function onPageLoad()
{
if (readCookie("PHPSESSID"))
{
menuVisibility = readCookie("menu_visibility");
if (menuVisibility)
{
document.getElementById("menu").style.visibility=menuVisibility;
if (menuVisibility=="hidden")
{
document.getElementById("hider").innerHTML="+";
}
}
}
}

function toggleMenu()
{
menuElement = document.getElementById("menu");
hiderElement = document.getElementById("hider");
if (!menuElement.style.visibility || menuElement.style.visibility=="visible")
{
menuElement.style.visibility="hidden";
hiderElement.innerHTML="+";
}
else
{
hiderElement.innerHTML = "-";
menuElement.style.visibility = "visible";
}
createCookie("menu_visibility",menuElement.style.visibility,365);
}
function createCookie(name, value, days)
{
  if (days) {
    var date = new Date();
    date.setTime(date.getTime()+(days*24*60*60*1000));
    var expires = "; expires="+date.toGMTString();
    }
  else var expires = "";
  document.cookie = name+"="+value+expires+"; path=/";
}

function readCookie(name)
{
  var ca = document.cookie.split(';');
  var nameEQ = name + "=";
  for(var i=0; i < ca.length; i++) {
    var c = ca[i];
    while (c.charAt(0)==' ') c = c.substring(1, c.length); //delete spaces
    if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length, c.length);
    }
  return null;
}

function eraseCookie(name)
{
  createCookie(name, "", -1);
}

var xmlhttp;
var ajaxReturn;
function sendRequest(url, params, returnVar)
{
xmlhttp = new XMLHttpRequest();
if (params)
{
url += "?" + params;
}
ajaxReturn = returnVar;
xmlhttp.onreadystatechange=ajaxStateChange;
xmlhttp.open("GET",url,true);
xmlhttp.send(null);
}

function ajaxStateChange()
{
if (xmlhttp.readyState == 4)
{
document.getElementById(ajaxReturn).innerHTML=xmlhttp.responseText + "<br /><a href=\"#\" onClick=\"ajax.togglePanel(); return false;\">Close</a>";;
}
}

function togglePanel()
{
panelElement = document.getElementById("AJAXPanel");
if (!panelElement.style.display || panelElement.style.display=="none")
{
panelElement.style.display="block";
} else {
panelElement.style.display="none";
}
}

function onSearchSubmit()
{
var query = document.getElementById("query").value;
var by = document.getElementById("by");
by = by.options[by.selectedIndex].value;
var sortby = document.getElementById("sortby");
sortby = sortby.options[sortby.selectedIndex].value;
var popup = document.getElementById("popup");
popup = popup.options[popup.selectedIndex].value;
var tid = document.getElementById("tid").value;
var panel = document.getElementById("AJAXPanel");
if (popup==2)
{
ajax.sendRequest("dosearch.php","query=" + query + "&by=" + by + "&sortby=" + sortby + "&popup=2&tid=" + tid,"AJAXPanel");
if (!panel.style.display || panel.style.display=="none")
{
ajax.togglePanel();
}
return false;
}
else
{
return true;
}
}

var ajax = new Object();
ajax.sendRequest=sendRequest;
ajax.togglePanel=togglePanel;
var menu = new Object();
menu.toggleMenu=toggleMenu;