Update index.html

index.html

@@ -31,7 +31,7 @@
             var a = document.createElement('div');
             var linkText = document.createTextNode(linkzz);
             a.appendChild(linkText);
-            a.id = "link_class";
+            a.class = "link_class";
             a.title = linkzz;
             a.href = linkzz;
             document.getElementById("in_html").appendChild(a);