test stubs, urls to the techniques.

exploration/cgrade.js

@@ -1,12 +1,63 @@
 (function(document) {
-    var target,
+    var target, tests = {}, test = 'standards-mode',
+    docElem = document.documentElement,
     SCRIPT = "script",
     TEXTJS = "text/javascript",
     STYLE = "style",
     TEXTCSS = "text/css";
 
+    tests['pass'] = {
+        pre:  function() { return true;},
+        test: function() {
+            return true;
+        }
+    };
+
+    tests['fail'] = {
+        pre:  function() { return false;},
+        test: function() {
+            return false;
+        }
+    };
+
+    tests['standards-mode'] = {
+        pre:  function() { return true;},
+        test: function() {
+            // http://acidmartin.wordpress.com/2008/10/21/using-compatmode-to-determine-the-standards-compliance-mode-of-the-page-on-the-client/
+            return document.compatMode === 'CSS1Compat';
+        }
+    };
+
+    tests['css2-selectors'] = {
+        pre:  function() { return true;},
+        test: function() {
+
+        }
+    };
+
+    tests['inline-block'] = {
+        pre:  function() { return true;},
+        test: function() {
+
+        }
+    };
+
+    tests['inline-block-no-workaround'] = {
+        pre:  function() { return true;},
+        test: function() {
+
+        }
+    };
+
+    tests['w3c-events'] = {
+        pre:  function() { return true;},
+        test: function() {
+
+        }
+    };
+
     function theTest() {
-        return true;
+        return tests[test].test();
     }
 
     function preTest() {
@@ -21,6 +72,7 @@
     }
 
     function putInHead(elem) {
+        // http://www.stevesouders.com/blog/2010/05/11/appendchild-vs-insertbefore/
         target.parentNode.insertBefore(elem, target);
     }
 
@@ -33,10 +85,11 @@
     }
 
     function insertFoucPreventer() {
-        $(document.documentElement).removeClass("no-js").addClass("js loading");
+        docElem.className = docElem.className.replace(/\bno-js\b/i, "js loading");
 
         var style = buildDynamicTag(STYLE, TEXTCSS);
         var css = ".loading .hideload {display:none};";
+        // http://www.phpied.com/dynamic-script-and-style-elements-in-ie/
         if (style.styleSheet) {
             //weird IE way
             style.styleSheet.cssText = css;