function fontsizeup(event)
{if(event&&getKeyCode(event)==9)
{return true;}
var 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++':setActiveStyleSheet('A');break;default:setActiveStyleSheet('A');break;}
return false;}
function fontsizedown(event)
{if(event&&getKeyCode(event)==9)
{return true;}
var 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;}
return false;}
function getKeyCode(event)
{var code=(event.keyCode)?event.keyCode:0;if(!code&&event.charCode)
{code=event.charCode;}
return code;}
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+style_cookie_settings;}
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;}
function load_cookie()
{var cookie=readCookie('style_cookie');var title=cookie?cookie:getPreferredStyleSheet();setActiveStyleSheet(title);}
function unload_cookie()
{var title=getActiveStyleSheet();createCookie('style_cookie',title,365);}
onload_functions.push('load_cookie()');onunload_functions.push('unload_cookie()');