(function(){
var _PARAM_NAME = []; //add parameter name. e.g. ['_rt_ck', 'rtsp']. [] means all parameter will be target.
var RT_LINK_CODE_PATTERN = '*'; //target url pattern. '*' means all url will be target.
var cookie_max_age = 60*60*24*60;
var current_url = encodeURIComponent(window.location.href);
var useragent = (function(){
var ua = window.navigator.userAgent.toLowerCase();
return ua.indexOf('msie') != -1 || ua.indexOf('trident') != -1 ? 'ie' :
( ua.indexOf('firefox') != -1 ? 'firefox' : 'other');
}());
replace_links = function(){
var query = '';
var url_params = new URLSearchParams(window.location.search);
if(_PARAM_NAME.length){
for(var i = 0; i < _PARAM_NAME.length; i++){
query += url_params.get(_PARAM_NAME[i]) ? _PARAM_NAME[i] + '=' + url_params.get(_PARAM_NAME[i]) + '&' : '';
}
query = query.slice(0, -1);
}else{
query = url_params.toString();
}
if(query.indexOf('_rt_ck') !== -1 ){
document.cookie = '_rt_ck='+url_params.get('_rt_ck')+'; max-age='+cookie_max_age.toString();
}else{
var _rt_ck_cookie = document.cookie.match(new RegExp('_rt_ck'+'\=([^\;]*)\;*')) ? document.cookie.match(new RegExp('_rt_ck'+'\=([^\;]*)\;*'))[1] : null;
if(_rt_ck_cookie){
query += query.length ? '&_rt_ck='+_rt_ck_cookie : '_rt_ck='+_rt_ck_cookie;
}
} if(query){
var links = document.links;
for(var i = 0; i < links.length; i++){
if('*' == RT_LINK_CODE_PATTERN || (RT_LINK_CODE_PATTERN && links[i] && RT_LINK_CODE_PATTERN.test(links[i].href))){
var url = new URL(links[i].href);
var hash = url.hash;
if(hash){
url.hash='';
links[i].href = url.href;
links[i].href += (-1 !== links[i].href.indexOf('?') ? '&' : '?') + query + hash;
}else{
links[i].href += (-1 !== links[i].href.indexOf('?') ? '&' : '?') + query;
}
}
}
}
}
if(window.addEventListener){
window.addEventListener('DOMContentLoaded',function(){
replace_links();
},false);
}else{
window.attachEvent('onload',function(){ //IE8以下用処理
replace_links();
});
}
})(); 