function fontsizeup(){active=getActiveStyleSheet();switch(active){case'A--':setActiveStyleSheet('A-');break;case'A-':setActiveStyleSheet('A');break;case'A':setActiveStyleSheet('A+');break;case'A+':setActiveStyleSheet('A++');break;case'A++':break;default:setActiveStyleSheet('A');break;}}
function fontsizedown(){active=getActiveStyleSheet();switch(active){case'A++':setActiveStyleSheet('A+');break;case'A+':setActiveStyleSheet('A');break;case'A':setActiveStyleSheet('A-');break;case'A-':setActiveStyleSheet('A--');break;case'A--':break;default:setActiveStyleSheet('A--');break;}}
function setActiveStyleSheet(title){var i,a,main;for(i=0;(a=document.getElementsByTagName("link")[i]);i++){if(a.getAttribute("rel").indexOf("style")!=-1&&a.getAttribute("title")){a.disabled=true;if(a.getAttribute("title")==title)a.disabled=false;}}}
function getActiveStyleSheet(){var i,a;for(i=0;(a=document.getElementsByTagName("link")[i]);i++){if(a.getAttribute("rel").indexOf("style")!=-1&&a.getAttribute("title")&&!a.disabled)return a.getAttribute("title");}
return null;}
function getPreferredStyleSheet(){return('A-');}
function createCookie(name,value,days){if(days){var date=new Date();date.setTime(date.getTime()+(days*24*60*60*1000));var expires="; expires="+date.toGMTString();}
else expires="";document.cookie=name+"="+value+expires+"; path=/";}
function readCookie(name){var nameEQ=name+"=";var ca=document.cookie.split(';');for(var i=0;i<ca.length;i++){var c=ca[i];while(c.charAt(0)==' ')c=c.substring(1,c.length);if(c.indexOf(nameEQ)==0)return c.substring(nameEQ.length,c.length);}
return null;}
window.onload=function(e){var cookie=readCookie("style");var title=cookie?cookie:getPreferredStyleSheet();setActiveStyleSheet(title);}
window.onunload=function(e){var title=getActiveStyleSheet();createCookie("style",title,365);}
var cookie=readCookie("style");var title=cookie?cookie:getPreferredStyleSheet();if(title=='null'){title=getPreferredStyleSheet();}
setActiveStyleSheet(title);