browser.js init -- very basic browser support - Makefile also builds for browser now

Makefile

@@ -21,9 +21,11 @@ VERSION = `cat VERSION`
 
 less:
 	@@mkdir -p build
-	@@cat ${SRC}/parser.js\
+	@@cat lib/ext/*.js\
+	      ${SRC}/parser.js\
 	      ${SRC}/functions.js\
-	      ${SRC}/tree/*.js > ${BUILD}
+	      ${SRC}/tree/*.js\
+	      ${SRC}/browser.js > ${BUILD}
 	@@echo ${BUILD} built.
 
 min: less

lib/less/browser.js

@@ -0,0 +1,32 @@
+//
+// Select all links with the 'rel' attribute set to "less"
+//
+var sheets = document.querySelectorAll("link[rel=less]");
+
+for (var i = 0; i < sheets.length; i++) {
+    xhr(sheets[i].href, function (data) {
+        new(less.Parser)({ optimizations: 3 }).parse(data, function (e, root) {
+            document.styleSheets[0].insertRule(root.toCSS());
+        });
+    });
+}
+
+function xhr(url, callback, errback) {
+    var xhr = new(XMLHttpRequest);
+    var headers = {
+        'X-Requested-With': 'XMLHttpRequest',
+        'Accept': 'text/*'
+    };
+
+    xhr.open('get', url, true);
+    xhr.onreadystatechange = function () {
+        if (this.readyState != 4) { return }
+
+        if (this.status >= 200 && this.status < 300) {
+            callback(this.responseText); 
+        } else if (typeof(errback) === 'function') {
+            errback(this.responseText);
+        }
+    };
+    xhr.send();
+}

lib/less/parser.js

@@ -1,6 +1,8 @@
 if (typeof(require) !== 'undefined') {
-    var less = exports || {};
+    var less = exports;
     var tree = require('less/tree');
+} else {
+    var less = tree = {};
 }
 //
 // less.js - parser