fix query string bug

@@ -142,16 +142,19 @@ $(window).on('resize', function() {
     }
 }).trigger('resize');
 
+// 对特殊的情况进行处理
 function queryString() {
     var vars = {},
         hash,
+        index,
         i,
         search = window.location.search,
         hashes = search ? decodeURIComponent(search).slice(1).split('&') : [];
 
     for (i = 0; i < hashes.length; i++) {
-        hash = hashes[i].split('=');
-        vars[hash[0]] = hash[1];
+        index = hashes[i].indexOf('=');
+        hash = hashes[i].substring(0, index);
+        vars[hash] = hashes[i].substring(index);
     }
     return vars;
 }

@@ -917,7 +917,7 @@ function setRefer() {
     var refer = queryString().refer || '',  // eslint-disable-line
         regUrl;
 
-    setCookie('refer', refer);  // eslint-disable-line
+    setCookie('refer', refer, {domain: '.yohobuy.com'});  // eslint-disable-line
 
     regUrl = (function() {
         if (refer) {