// Global Variables
var affil_scheme = "http:";
var affil_hostname = "www.foundry42.com";
var affil_path = "partnertest";
var affil_format = "json";
var affil_maxcount = "5";
var affil_page = "";
var affil_src = "";
var affil_lmsg = "<div style='padding:10px;font-family:Arial, Helvetica, sans-serif;color:#999999;font-size:9pt;'>Loading...</div>";
var affil_display_lmsg = "yes";
var affil_debugjs = "no";
var affil_feedcalled = "no";
var affil_startat = "1";
var affil_endat = (typeof f42_maxcount != "undefined" && f42_maxcount ? f42_maxcount : affil_maxcount);
var affil_gfeed;
var affil_ph = 0;
var affil_ft = "";
var affil_ssc = "1";
var affil_cspm = "0";
var affil_kwparam = "keywords";
var affil_els = new Array();


// Element shortcut
function f42_$(x){return document.getElementById(x);}

// Calls the partner ppc feed executes the resulting JSON object
function f42_showAds(start, end, elem) {	
  
  if(f42_checkParams()) {
	if(!start) { //If the optional argument is not there, create a new variable with that name.
		var start = affil_startat;
	}

	if(!end) { //If the optional argument is not there, create a new variable with that name.
		var end = affil_endat;
	}	
	document.write('<div id="ppc" name="ppc" style="display: block;"><span id="f42_place_'+affil_ph+'"></span></div>');
	
	// Add the element to an array	
	affil_els.push({el:f42_$("f42_place_"+(affil_ph)).parentNode,s:(start?start:1),e:end});
    	f42_showLoadingMsg(f42_$("f42_place_"+(affil_ph++)).parentNode);
	f42_callFeed();
  }
  return false;  
}

// Builds a string given the start and end indices for element
// @param g The feed element
// @param s The start index
// @param e The end index
// @param u The url protocol
function f42_buildBlock(g,s,e,u){
		
	var strB = new Array(); // Equivalent to a string builder in other languages
	if(g.ppcsl && g.ppcsl != "") strB.push('<div id="ppcsl"><div id="ppctext">'+g.ppcsl+' <span class="kw">'+g.ppckeywords+'</span></div><div id="wt">[<a href="javascript:affilwtpopup();">what&acute;s this?</a>]</div></div>');
	if(g.items.length > 0) {
		for(var i = s-1; i < g.items.length && i < e; i++){
			var ur = g.items[i].clickurl;
			if(ur.substring(4,0) == 'http') { u='';}
			strB.push('<div class="ppclisting ad'+(i+1)+'">');
			strB.push('<a class="ppctitle" href="'+u+ur+'" target="_blank">'+g.items[i].ppctitle+'</a>');
			strB.push('<a class="ppcdescription" href="'+u+ur+'" target="_blank">'+g.items[i].ppcdescription+'</a>');
			strB.push('<a class="ppchost" href="'+u+ur+'" target="_blank">'+g.items[i].ppchost+'</a>');
			strB.push('</div>');
		}
	} else {
		strB.push('<div id="noresults">There are no results for ' + g.ppckeywords + '.</div>');
	}
	return strB.join("");	
}

function f42_renderAds(start, end) {	
	a_debug("Render Ads");
	if(!start) var start = 1;
	if(!end)  var end = affil_maxcount;
	
	try{		
		if(typeof affil_gfeed != "undefined" && affil_gfeed != null){			
			u=f42_getUrlAndPath(false);				
			for(var i = 0; i < affil_els.length; i++){						
				a_debug("\nAd Block Start: " + affil_els[i].s + " End: " + affil_els[i].e);
				affil_els[i].el.innerHTML=f42_buildBlock(affil_gfeed,affil_els[i].s,affil_els[i].e,u);			
				a_debug(affil_els[i].el.innerHTML);
			}
		}else{
			// Handle no feed			
			return;
		}
	}catch(err){}
	
	return;
}

function f42_callFeed() {
    a_debug("f42_callFeed - affil_feedcalled: " + affil_feedcalled);
	if (affil_feedcalled == 'no') {
		a_debug("f42_callFeed - calling feed now");
		var headID = document.getElementsByTagName("head")[0];
		var newScript = document.createElement('script');
		newScript.type = 'text/javascript';
		newScript.src = affil_src;
		headID.appendChild(newScript);
		affil_feedcalled = "yes";
	}else{
		f42_renderAds();
	}
   
}

//Checks if the Loading message should be shown and display it before results are returned.
function f42_showLoadingMsg(el) {

	if(typeof f42_display_lmsg != "undefined" && f42_display_lmsg != null){			
    	affil_display_lmsg = f42_display_lmsg;
	}
    if(affil_display_lmsg == 'yes') {
		if(typeof f42_lmsg != "undefined" && f42_lmsg != null) affil_lmsg = f42_lmsg;
		el.innerHTML=affil_lmsg;
    }
}
// Renders the feed from returned JSON object
function jsonPPCFeed(feed){
  affil_gfeed = eval(feed);
  if(affil_gfeed.ppccss != '') {
	var headID = document.getElementsByTagName("head")[0];
	var newCss = document.createElement('link');
	newCss.rel = 'stylesheet';
	newCss.type = 'text/css';
	newCss.href = affil_gfeed.ppccss;
	headID.appendChild(newCss);
	a_debug("CSS Link added to Head: " + affil_gfeed.ppccss);
  }
  f42_renderAds();
}

function f42_getUrlAndPath(withpath) {
  var returl = "";
  var cur_scheme =  document.location.protocol;
  if (cur_scheme == 'https:')
	affil_scheme = cur_scheme;

  if(typeof f42_host != "undefined" && f42_host != null) affil_hostname = f42_host;

  if(typeof f42_path != "undefined" && f42_path != null) affil_path = f42_path;

  returl = affil_scheme + '//';
  returl += affil_hostname;
  if(withpath) returl += '/' + affil_path;
  return returl;

}

function affilwtpopup(){
  wtpopupwin = window.open('http://media.foundry42.com/partner/inc/wt.html', 'wtpopup', 'toolbar=0,scrollbars=0,location=0,statusbar=0,menubar=0,resizable=0,width=400,height=250');
}

// getLocationParams returns an array of QS params
var cur_url = window.location.href;
function getLocationParams()
{
  var url_params = new Object;
  var search_params = "";
  if(cur_url.indexOf('?') > 0) var search_params = cur_url.substr(cur_url.indexOf('?')+1);
  if(search_params != "")
  {
    if(search_params.indexOf('&') > 0) var tmparr = search_params.split("&");
    else var tmparr = new Array(search_params);
    for(var i=0; i < tmparr.length; i++)
    {
      var tmparr2 = tmparr[i].split("=");
      url_params[tmparr2[0]] = tmparr2[1];
    }
  }
  return url_params;
}


function isLander() 
{
	var is_lander = true;
	if( cur_url.indexOf('referrer=')>0 || cur_url.indexOf('keywords=')>0 || cur_url.indexOf(affil_kwparam+'=')>0 ) {
		is_lander=true;
	}
	return is_lander;
}            


var add_params = "";
var necessary_keys = new Array("keywords","referrer","keyword","camp","group","creativeid","traffictype");
function f42_checkParams(){
  if (affil_feedcalled == "no") {
	  var url_params = getLocationParams();
	  var url_params2 = new Array();
	  if(typeof f42_kwparam != "undefined" && f42_kwparam != null) affil_kwparam = f42_kwparam;
	  try  {
		for(var i=0; i < necessary_keys.length; i++)
		{
		  a_debug('Parameter ' + necessary_keys[i] + ' = ' + url_params[necessary_keys[i]]);
		  if(necessary_keys[i] == "keywords") {
			a_debug('kwparam' + affil_kwparam + ' = ' + url_params[affil_kwparam]);
		  	if(url_params[affil_kwparam] != undefined) 
		  		url_params2.push(necessary_keys[i]+'='+url_params[affil_kwparam]);
		  	else {
				if (f42_defaultkeywords == '') return false;
				url_params2.push(necessary_keys[i]+'='+encodeURIComponent(f42_defaultkeywords));
		  	}
		  }	else {
			  if(url_params[necessary_keys[i]] != undefined) url_params2.push(necessary_keys[i]+'='+url_params[necessary_keys[i]]);
		  }
		}
		url_params2.push('format='+affil_format);
		if(typeof f42_startat != "undefined" && f42_startat != null) affil_startat = f42_startat;
		if(typeof f42_endat != "undefined" && f42_endat != null) affil_endat = f42_endat;
		if(typeof f42_maxcount != "undefined" && f42_maxcount != null) affil_maxcount = f42_maxcount;
		if(typeof f42_cspm != "undefined" && f42_cspm != null) affil_cspm = f42_cspm;
		url_params2.push('maxcount='+affil_maxcount);
		if (isLander()) {
			affil_ft = "PM";
			affil_ssc = "0";
		}
		if (affil_cspm == "1") affil_ft = "PM";
		a_debug('\naffil_ft: ' + affil_ft);
		a_debug('affil_ssc: ' + affil_ssc + '\n');
		if(typeof affil_ft != "undefined" && affil_ft != null && affil_ft != "") url_params2.push('feed='+affil_ft);
		url_params2.push('ssc='+affil_ssc);
		if(typeof f42_css != "undefined" && f42_css != null) url_params2.push('css='+encodeURIComponent(f42_css));
		if(url_params["serveUrl"] != undefined) cur_url = url_params["serveUrl"]; 
		var serve_url = cur_url;
		if(cur_url.indexOf('?') > 0) serve_url = cur_url.substr(0, cur_url.indexOf('?'));
		url_params2.push('serveUrl='+encodeURIComponent(serve_url));
		if(url_params2.length != undefined && url_params2.length > 0) add_params = url_params2.join("&");
		if(add_params != "") {
		  affil_src = f42_getUrlAndPath(true) + '/';
		  affil_src += affil_page + '?';
		  affil_src += add_params;
		  a_debug('Debug feed url: \n' + affil_src + '\n');
		}
	  } catch (e) { return false; }
  } // end if havefeed = no
  return true;
}

function ctWinOpen(url){
	var url = url;
	window.open(url);
}

// If JS Debug
if(affil_debugjs == 'yes') {
	document.write('<form id="f42_jsdebug"><textarea id="f42out" rows="10" cols="100"></textarea></form>');
	var f = document.forms["f42_jsdebug"];
}

function a_debug(str){
	if(affil_debugjs == 'yes')f.elements["f42out"].value += str + "\n";
}


// Call function to show Ads
f42_showAds();