try button js

src/web/emscriptem_build.txt

@@ -11,3 +11,27 @@ call emcc -DMOCKFILES -Wno-multichar "lib.c" -o "Web\cake.js" -s WASM=0 -s EXPOR
 
 
 This will generate Web\cake.js
+
+
+
+
+This can be used in html to open the sample in playground
+
+
+//Button Try after the sample 
+<button onclick="Try(this)">try</button>
+
+<script>
+    function Try(elm)
+    {
+        //collect the text previous sample
+        var source = elm.previousElementSibling.innerText;
+
+        var link = "http://thradams.com/cake/playground.html?code=" + encodeURIComponent(btoa(source)) +
+            "&to=" + encodeURI("1") +
+            "&options=" + encodeURI("");
+
+        window.open(link);
+    }
+
+</script>