Purge all Cache From Dashboard

Using the Java code below OBIEE BI Server cache can be cleared from Dashboard

1.Insert a Text box into a dashboard  "Contains HTML" must be ticked
2. Paste below code into Text Box

<script language="javascript">
document.write(
 "<iframe width=Opx height=Opx src=" +
  document.location.href.match(/^[^?]+/) +
"?IssueRawSQL" +
document.location.href.match(/&_scid=[^&]+/) +
"&SQL=CALL+SAPurgeAllCache();)></iframe>"
);
</script>