function switchFeature(name){
var feature=getCookie('_pre-assistant-config-' + name);
if(! feature||feature==='0'){
setCookie('_pre-assistant-config-' + name, 1);
}else{
setCookie('_pre-assistant-config-' + name, 0);
}
window.location.reload();
}
function setCookie(param, value, exdays){
var date=new Date();
date.setTime(date.getTime() +(exdays * 24 * 60 * 60 * 1000) );
var expires='expires=' + date.toUTCString();
document.cookie=param + '=' + value + ';' + expires + ';path=/';
}
function getCookie(param){
var name=param + '=';
var cookie_list=document.cookie.split(';');
for(var i=0; i < cookie_list.length; i++){
var cookie=cookie_list[ i ];
while(cookie.charAt(0)===' '){
cookie=cookie.substring(1);
}
if(cookie.indexOf(name)===0){
return cookie.substring(name.length, cookie.length);
}}
return '';
};