X-Git-Url: https://git.openstreetmap.org/rails.git/blobdiff_plain/b4c0bfd8fa324a4c9d8b24e8753d134524ea61c7..2804e77cc373f76ab298c4f429fd958cdf983088:/public/javascripts/site.js

diff --git a/public/javascripts/site.js b/public/javascripts/site.js
index 75c3eb539..781940fa6 100644
--- a/public/javascripts/site.js
+++ b/public/javascripts/site.js
@@ -1,28 +1,71 @@
 function updatelinks(lon,lat,zoom) {
-    var links = new Array();
-    links['viewanchor'] = '/index.html';
-    //links['editanchor'] = 'edit.html';
-    links['uploadanchor'] = '/traces';
-    links['loginanchor'] = '/login.html';
-    links['logoutanchor'] = '/logout.html';
-    links['registeranchor'] = '/create-account.html';
- 
-    var node;
-    var anchor;
-    for (anchor in links) {
-	node = document.getElementById(anchor);
-	if (! node) { continue; }
-	node.href = links[anchor] + "?lat=" + lat + "&lon=" + lon + "&zoom=" + zoom;
-    }
+  var links = new Object();
+  links['viewanchor'] = '/index.html';
+  //links['editanchor'] = 'edit.html';
+  links['uploadanchor'] = '/traces';
+  links['loginanchor'] = '/login.html';
+  links['logoutanchor'] = '/logout.html';
+  links['registeranchor'] = '/create-account.html';
+
+  var node;
+  var anchor;
+  for (anchor in links) {
+    node = document.getElementById(anchor);
+    if (! node) { continue; }
+    var args = getArgs(node.href);
+    args["lat"] = lat;
+    args["lon"] = lon;
+    args["zoom"] = zoom;
+    node.href = setArgs(node.href, args);
+  }
 
-    node = document.getElementById("editanchor");
-    if (node) {
-    if ( zoom >= 14) {
-        node.href = '/edit.html?lat=' + lat + '&lon=' + lon + "&zoom=" + zoom;
-	node.style.fontStyle = 'normal';
+  node = document.getElementById("editanchor");
+  if (node) {
+    if (zoom >= 11) {
+      var args = new Object();
+      args.lat = lat;
+      args.lon = lon;
+      args.zoom = zoom;
+      node.href = setArgs("/edit.html", args);
+      node.style.fontStyle = 'normal';
     } else {
-        node.href = 'javascript:alert("zoom in to edit map");';
-	node.style.fontStyle = 'italic';
-    }
+      node.href = 'javascript:alert("zoom in to edit map");';
+      node.style.fontStyle = 'italic';
     }
+  }
+}
+
+function getArgs(url) {
+  var args = new Object();
+  var querystart = url.indexOf("?");
+
+  if (querystart >= 0) {
+     var querystring = url.substring(querystart + 1);
+     var queryitems = querystring.split("&");
+
+     for (var i = 0; i < queryitems.length; i++) {
+        if (match = queryitems[i].match(/^(.*)=(.*)$/)) {
+           args[unescape(match[1])] = unescape(match[2]);
+        } else {
+           args[unescape(queryitems[i])] = null
+        }
+     }
+  }
+
+  return args;
+}
+
+function setArgs(url, args) {
+   var queryitems = new Array();
+
+   for (arg in args)
+   {
+      if (args[arg] == null) {
+         queryitems.push(escape(arg));
+      } else {
+         queryitems.push(escape(arg) + "=" + escape(args[arg]));
+      }
+   }
+
+   return url.replace(/\?.*$/, "") + "?" + queryitems.join("&");
 }