var _ga=_ga||{};var _gaq=_gaq||[];_ga.trackSocial=function(opt_pageUrl,opt_trackerName){_ga.trackFacebook(opt_pageUrl,opt_trackerName);_ga.trackTwitter(opt_pageUrl,opt_trackerName);};_ga.trackFacebook=function(opt_pageUrl,opt_trackerName){var trackerName=_ga.buildTrackerName_(opt_trackerName);try{if(FB&&FB.Event&&FB.Event.subscribe){FB.Event.subscribe('edge.create',function(targetUrl){_gaq.push([trackerName+'_trackSocial','facebook','like',targetUrl,opt_pageUrl]);});FB.Event.subscribe('edge.remove',function(targetUrl){_gaq.push([trackerName+'_trackSocial','facebook','unlike',targetUrl,opt_pageUrl]);});FB.Event.subscribe('message.send',function(targetUrl){_gaq.push([trackerName+'_trackSocial','facebook','send',targetUrl,opt_pageUrl]);});}}catch(e){}};_ga.buildTrackerName_=function(opt_trackerName){return opt_trackerName?opt_trackerName+'.':'';};_ga.trackTwitter=function(opt_pageUrl,opt_trackerName){var trackerName=_ga.buildTrackerName_(opt_trackerName);try{if(twttr&&twttr.events&&twttr.events.bind){twttr.events.bind('tweet',function(event){if(event){var targetUrl;if(event.target&&event.target.nodeName=='IFRAME'){targetUrl=_ga.extractParamFromUri_(event.target.src,'url');}
_gaq.push([trackerName+'_trackSocial','twitter','tweet',targetUrl,opt_pageUrl]);}});}}catch(e){}};_ga.extractParamFromUri_=function(uri,paramName){if(!uri){return;}
var uri=uri.split('#')[0];var parts=uri.split('?');if(parts.length==1){return;}
var query=decodeURI(parts[1]);paramName+='=';var params=query.split('&');for(var i=0,param;param=params[i];++i){if(param.indexOf(paramName)===0){return unescape(param.split('=')[1]);}}
return;};