Partial fix IE6 and IE7 blowing up on main site. These browsers do not have...

Partial fix IE6 and IE7 blowing up on main site.  These browsers do not have Array.prototype.indexOf

issue #1552

resources/static/pages/start.js

@@ -28,6 +28,15 @@ $(function() {
       checkCookiePaths = [ "/signin", "/signup", "/forgot", "/add_email_address", "/verify_email_address" ];
 
 
+  function shouldCheckCookies(path) {
+    if (path) {
+      // IE6 and IE7 will blow up if trying to use indexOf on the array.
+      for(var i = 0, checkCookiePath; checkCookiePath = checkCookiePaths[i]; ++i) {
+        if (checkCookiePath === path) return true;
+      }
+    }
+  }
+
   xhr.init({ time_until_delay: 10 * 1000 });
   network.init();
 
@@ -42,7 +51,7 @@ $(function() {
   moduleManager.register("xhr_disable_form", XHRDisableForm);
   moduleManager.start("xhr_disable_form");
 
-  if(path && (checkCookiePaths.indexOf(path) > -1)) {
+  if(shouldCheckCookies(path)) {
     // do a cookie check on every page except the main page.
     moduleManager.register("cookie_check", CookieCheck);
     moduleManager.start("cookie_check", { ready: start });