added scrollbar support for container DOM, structured the unittests a bit better, and did some minor refactoring

tests/js/Test.js

@@ -0,0 +1,50 @@
+function test(condition, message) {
+    if(!condition) {
+        throw new Error(message);
+    }
+}
+function log(message) {
+    console.log("LOG: " + message);
+}
+/**
+ * Test constructor
+ */
+function Test() {
+    this.testOnly = "";
+    this.counter = 0;
+}
+/**
+ * Test methods
+ */
+Test.prototype = {
+    addTestContainer: function(key) {
+        var row = document.createElement('div');
+        var container = document.createElement('div');
+        var testMessage = document.createElement('p');
+
+        container.id = key;
+
+        document.body.appendChild(testMessage);
+        row.appendChild(container);
+        row.className = "row";
+        document.body.appendChild(row);
+
+        return {
+            testMessage: testMessage
+        };
+    },
+    run: function() {
+        var tests = this.tests;
+
+        for(var key in tests) {
+            if(!this.testOnly || (this.testOnly && this.testOnly == key)) {
+                var obj = this.addTestContainer(key);
+                this.counter++;
+                console.log(this.counter + ") " + key);
+                tests[key](key);
+                obj.testMessage.innerHTML = this.counter + ") " + key + ': PASSED';
+                obj.testMessage.setAttribute("class", "green");
+            }
+        }
+    }
+};