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--- en:user:gs3_sample_format_statements [2016/10/09 21:46] – [Linking metadata to a search] kjdon
+++ en:user:gs3_sample_format_statements [2016/10/09 22:40] – [adding in new javascript] kjdon
@@ Line 203: / Line 203: @@
   * s1.index=CR   - the index to search in, in this case the CR dc.Creator index.
-==== adding in new javascript ====
+===== Using javascript to change the display =====
+As an example of using javascript, we will see how to output the document filesize in a human readable form. For example, instead of displaying "834716 bytes", it will display "815 KB".
+A basic javascript method to do this is the following:
+<code>
+function humanReadableFileSize(bytes)
+{
+    var filesize = bytes + " bytes";
+    if (bytes > 1048576) {
+	filesize = Math.round(bytes / 1048576.0) + " MB";
+    }
+    else if (bytes > 1024) {
+	filesize = Math.round(bytes/1024.0)+ " KB";
+    }
+    return filesize;
+}
+</code>
+So, we have a javascript function, but how do we get it into the page?
 Displaying human readable filesize.