var min=90;var max=150;function increaseFontSize(){var _1=document.getElementsByTagName("body")[0];if(_1.style.fontSize){var s=parseInt(_1.style.fontSize.replace("%",""));}else{var s=90;}if(s!=max){s+=10;}_1.style.fontSize=s+"%";};function decreaseFontSize(){var _2=document.getElementsByTagName("body")[0];if(_2.style.fontSize){var s=parseInt(_2.style.fontSize.replace("%",""));}else{var s=90;}if(s!=min){s-=10;}_2.style.fontSize=s+"%";};