// Get Query String Vars Function

function getQueryVariable(variable) {
  var query = window.location.search.substring(1);
  var vars = query.split("&");
  for (var i=0;i<vars.length;i++) {
    var pair = vars[i].split("=");
    if (pair[0] == variable) {
      return pair[1];
    }
  } 
}

// GetMeta Function
// Pulls vars from META tags

 function getMeta(metatag,prefix)  {
      metas = document.getElementsByTagName("meta");
      for (i=0;i<metas.length;i++) {
        if (metas[i].name == metatag) {
 if (metas[i].content.length > 0) return prefix + metas[i].content;
 }
      }
      return "";
    }

// SpiltStringWithPrefix Function
// Splits out truncated vars such as comma separated categories

function SplitStringWithPrefix(string,prefix,divider)
{
	var i;	
	var string_array=(string).split(",");	
	var result="";

	for  (i=0;i<string_array.length;i++)
	 {
		if (i>0) {result = result + divider;};
		
		result = result + prefix + string_array[i];
	 }

	return result;
};



// Random number for DoubleClick
ord=Math.random()*10000000000000000;


//define DART site value

var dartsite = 'cmpibe-bldg';


// Zone calculation
// Will always try to use a navigation path as a zone. The fallback would be the calculated navigation (crumbtrail) if a navigation path doesn't exist

var navzone = getMeta('navlevel1','/') + getMeta('navlevel2','/') + getMeta('navlevel3','/');

var calczone = getMeta('calcnavlevel1','/') + getMeta('calcnavlevel2','/') + getMeta('calcnavlevel3','/');

var page = getMeta('pagename','');

var zone = '';

var gated = '';

var story = '';

var kw = '';

// Homepage and Search Results pages override navigation zones

if ( page == 'index' ) { zone = '/homepage'; }

else if ( page == 'searchresults' ) { zone = '/searchresults'; }
	
	else
	
	{

		if (navzone == '' && navzone != 'login-to-your-account' && navzone != '/home' ) { 
			if (calczone == '') { zone = '/' + page; }
				else { zone = calczone; }
		}
	
	else { zone = navzone; }

}

// Story string - only populates if you're on a story page

if ( getMeta('storycode','') !== '') {
	if (getMeta('storyclassification','') == 'true') { gated = 'true'; }
	else { gated = 'false'; }
story = 'story=' + getMeta('storycode','') + ';gated=' + gated + ';' + getMeta('storycatsdbc','');
}
else { story = ''; }

// Search keywords

if (getMeta("searchkeywords","") == '') { kw = ''}
else { kw = SplitStringWithPrefix(getMeta("searchkeywords",""),"kw=",";"); 
}

// Other metas being passed into vars. Allows for easier use with Omniture also

var userstatus = getMeta("userstatus","");

var stype = getMeta("subtype","");
if (stype != '' )  { stype = 'stype=' + stype + ';'; }
else {
stype = '';
}

var cosec = getMeta("cosec","");
if (cosec != '' )  { cosec = 'cosec=' + cosec + ';'; }

var josec = getMeta("josec","");
if (josec != '' )  { josec = 'josec=' + josec + ';'; }

var jlev = getMeta("jlev","");
if (jlev != '' )  { jlev = 'jlev=' + jlev + ';'; }

var demostr = cosec + josec + jlev;


// Renew date calculation

var rnew;
var dex = getMeta('dex','');
if (dex) {
dexParts = dex.split("/");
var dexDate = new Date(dexParts[2],dexParts[1]-1,dexParts[0]);
var todaysDate = new Date();
var one_day=1000*60*60*24;
var Diff = Math.ceil(((dexDate.getTime()-todaysDate.getTime())/(one_day)) + 1 - 1);

if (Diff === 1) {
	rnew =	'rnew=001dyr;';
}
else if (Diff <= 7)  {
	rnew =	'rnew=001wkr;';
}
else if (Diff > 7) {
	wks = Diff / 7;
	wksrnd = Math.round(wks);
	if (wks > wksrnd) {
		wks = wksrnd+1;
	}

	else {
		wks = wksrnd;	
	}
	
	var wks = wks + '';
	
	while(wks.length < 3) {
		wks = "0" + wks; 
	}

	rnew = 'rnew='+wks+'wkr;';

	}

	else {
	rnew = ''	
	}
}

else {
	rnew = '';
}



// AdCall Function
// Generates the ad tag. Include on a page with a document.write call

 function AdCall(pos,sz,tile)  {

if (sz === '1x1') { dcopt = 'dcopt=ist;'; }
else { dcopt = '';}

adcall = '<script language="JavaScript" src="http://ad.uk.doubleclick.net/adj/' + dartsite + zone + ';page=' + page + ';' + story + kw + demostr + rnew + stype + 'login=' + userstatus + ';pos=' + pos + ';tile=' + tile + ';sz=' + sz +';'+dcopt+'ord='+ ord +'?" type="text/javascript"></scr' + 'ipt>';



if (getQueryVariable("showadtag") == "1") {
adtagcode = '<div class="dartcode"><pre style="text-align:left;white-space:pre-wrap;">' + dartsite + zone + ';page=' + page + ';' + story + kw + demostr + rnew + stype + 'login=' + userstatus + ';pos=' + pos + ';tile=' + tile + ';sz=' + sz +';</pre></div>';
}
else {
adtagcode = '';
}

return adcall + adtagcode;

}


//TOOLSBOX JAVASCRIPT
//Allows the user to add Building Search and Bookmark the page

function bookmarksite(title, url){
if (document.all)
window.external.AddFavorite(url, title);
else if (window.sidebar)
window.sidebar.addPanel(title, url, "")
}

function addSearchProviderBuilding() {
try {
window.external.AddSearchProvider('http://www.building.co.uk/pictures/doubleclick/SearchPlugin/BuildingSearchPlugin.xml');
}
catch (e) {
alert("This plugin needs Firefox 2.0, Internet Explorer 7 or higher to work.");
return;
}
}

// Omniture value calculation

var regflag = '';

var gateflag = '';

if (userstatus == 'notloggedin') {regflag = 'NonRegistered User';}
else  {regflag = 'Registered User';}

if (gated = "true") {gateflag = 'Paid content';}
else {gateflag = 'Non paid';}

var origin = getMeta("origin","");

	/* search result click 
		s.events = "event14";
		  s.evar19 = getMeta('subject');
		  }
		  */

function omniture_eventclick(eventname,url)

	{ 
	
	if (eventname == 'MostPopular') {
		  s.linkTrackVars   = 'events, prop6, prop7, prop8';
		  s.linkTrackEvents = 'event8, event9';
		  s.prop6           = "Most popular"; 
		  s.prop7           = url;
		  s.events          = "event8";
	}
		

	else if (eventname == 'MostCommented')
		{
		  s.linkTrackVars   = 'events, prop6, prop7, prop8';
		  s.linkTrackEvents = 'event8, event9';
		  s.prop6           = "Most commented"; 
		  s.prop8           = url;
		  s.events          = "event9";
}
	}