var pic1 = new Image();
var pic2 = new Image();
var pic3 = new Image();
var pic4 = new Image();
var pic5 = new Image();

pic1.src = '/images/mind_20x20_inactive.gif';
pic2.src = '/images/body_20x20_inactive.gif';
pic3.src = '/images/green_20x20_inactive.gif';
pic4.src = '/images/arrow_plus_inactive.gif';
pic5.src = '/images/arrow_minus_inactive.gif';

function vote(link,up,category)
{
	var target = 'vote' + link;
	var sendstring = 'l=' + link + '&up=' + up + '&c=' + category;
	sendRequest('ajaxvote.action',sendstring,target);
	return false;
}


function saveLinkFromStory(link)
{
	var target = 'save';
	var sendstring = 'l=' + link;
	sendRequest('savelink1.action',sendstring,target);
	return false;
}

function saveLinkFromMain(link)
{
	var target = 'save' + link;
	var sendstring = 'l=' + link;
	sendRequest('savelink2.action',sendstring,target);
	return false;
}

function saveClick(link)
{
	var sendstring = 'l=' + link + '&r=false';
	sendRequest('link.action',sendstring);
}

function newXMLHttpRequest() 
{
  var xmlreq = false;
  if (window.XMLHttpRequest) 
  {
    xmlreq = new XMLHttpRequest();
  } 
  else if (window.ActiveXObject) 
  {
    try 
    {
      xmlreq = new ActiveXObject("Msxml2.XMLHTTP");
    } 
    catch (e1) 
    {
      try 
      {
        xmlreq = new ActiveXObject("Microsoft.XMLHTTP");
      } 
      catch (e2) 
      {
        // Unable to create an XMLHttpRequest with ActiveX
      }
    }
  }
  return xmlreq;
}

function getReadyStateHandler(req, responseXmlHandler, target) {

  return function () 
  {
    if (req.readyState == 4) 
    {
      if (req.status == 200) 
      {
        responseXmlHandler(req.responseText, target);
      } 
      else 
      {
        alert("HTTP error: "+req.status);
      }
    }
  }
}

function sendRequest(page,args,target)
{
	var req = newXMLHttpRequest();
	var handlerFunction = getReadyStateHandler(req, responseHandler, target);
	req.onreadystatechange = handlerFunction;
	page = '/' + page;
	req.open("POST", page, true);
	req.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");
	req.send(args);
}

function responseHandler(response,target)
{
	if(response.substring(0,11)=='javascript=')
	{
		var message = response.substring(11,response.length-1);
		eval(message);
	}
	else if (target!=null)
		document.getElementById(target).innerHTML = response;
}