var fbg=new function(){var self=this;var test_frequency=20;var giveup=3000;var latency=100;this.rfu=null;var init=null;var onWinLoad=null;this.hideFOUT=null;this.isFontFaceSupported=null;this.onFontFaceFailed=null;init=function(){};onWinLoad=function(callback){if(window.addEventListener)addEventListener('load',callback,false);else attachEvent('onload',callback)};this.hideFOUT=function(when,delay){if(navigator.appName!='Microsoft Internet Explorer'&&!/Firefox\/3/.test(navigator.userAgent))return;delay=delay||latency;var fontnams=[];var fontruls=[];var selectrs=[];var iscompliant=true;for(var i=0;i<document.styleSheets.length;i++){var stylsheet=document.styleSheets[i];if(!stylsheet.cssRules){iscompliant=false;var rls=stylsheet.cssText;rls.replace(/@font-face\s*\{([^\}]+)\}/ig,function(r,t){var fontnam=r.replace(/([\s\S]*)(font-family:\s*['"]?)([-_0-9a-zA-Z]+)([\s\S]*)/,"$3");fontnams.push(fontnam);return r})}var ffrules=stylsheet.cssRules||stylsheet.rules;for(var j=0;j<ffrules.length;j++){var rul=ffrules[j];if(iscompliant&&rul instanceof CSSFontFaceRule){var fontnam=rul.cssText.replace(/([\s\S]*)(font-family:\s*['"]?)([-_0-9a-zA-Z]+)([\s\S]*)/,"$3");fontnams.push(fontnam)}else fontruls.push(rul)}}for(var i=0;i<fontnams.length;i++){for(var j=0;j<fontruls.length;j++){var csstxt=iscompliant?fontruls[j].cssText:fontruls[j].style.cssText;if(csstxt.indexOf(fontnams[i])!=-1){selectrs.push(fontruls[j].selectorText)}}}var body=document.body||document.documentElement;var spn=document.createElement('span');spn.setAttribute('style','font:99px _,serif;position:absolute;visibility:hidden');spn.innerHTML='Hello World';spn.id='fonttest';body.appendChild(spn);var stl1=document.createElement('style');document.getElementsByTagName("head")[0].appendChild(stl1);var allhidden='';for(var i=0;i<selectrs.length;i++)allhidden+=(selectrs[i]+(i<(selectrs.length-1)?', ':' '));allhidden+='{visibility:hidden}';if(stl1.styleSheet)stl1.styleSheet.cssText=allhidden;else stl1.textContent=allhidden;spn.style.font='99px "'+fontnams[fontnams.length-1]+'",_,serif';var wid=spn.offsetWidth;var temp1='';var freq=test_frequency;var showHidden=function(){var fnttest=setInterval(function(){if(!wid&&document.body){body.removeChild(spn);document.body.appendChild(spn);wid=spn.offsetWidth}var nu_wid=spn.offsetWidth;temp1+=(nu_wid+'   ');giveup-=freq;if(wid!=nu_wid||giveup<=0){clearInterval(fnttest);setTimeout(function(){stl1.parentNode.removeChild(stl1)},delay);if(giveup<=0&&self.onFontFaceFailed)self.onFontFaceFailed();spn.parentNode.removeChild(spn)}},freq)}if(when=='asap')showHidden();else if(when=='onload')onWinLoad(showHidden);else showHidden();if(window.TESTCAPTURE){onWinLoad(function(){document.getElementById('hf_monitor_div').innerHTML=temp1;setTimeout(function(){document.getElementById('hf_monitor_div').innerHTML+='<br>Final: '+spn.offsetWidth},1000)})}};this.isFontFaceSupported=function(){var sheet,doc=document,head=doc.head||doc.getElementsByTagName('head')[0]||docElement,style=doc.createElement("style"),impl=doc.implementation||{hasFeature:function(){return false}};style.type='text/css';head.insertBefore(style,head.firstChild);sheet=style.sheet||style.styleSheet;var supportAtRule=impl.hasFeature('CSS2','')?function(rule){if(!(sheet&&rule))return false;var result=false;try{sheet.insertRule(rule,0);result=!(/unknown/i).test(sheet.cssRules[0].cssText);sheet.deleteRule(sheet.cssRules.length-1)}catch(e){}return result}:function(rule){if(!(sheet&&rule))return false;sheet.cssText=rule;return sheet.cssText.length!==0&&!(/unknown/i).test(sheet.cssText)&&sheet.cssText.replace(/\r+|\n+/g,'').indexOf(rule.split(' ')[0])===0};return supportAtRule('@font-face { font-family: "font"; src: "font.ttf"; }')};init()}();