var _ga=_ga||{},_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],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};