JavaScript Reference/Javascript Properties/referrer
"referrer" Example
<source lang="javascript">
<html> <body> <script language="JavaScript"> function function1() {
var m = document.referrer; alert(m);
} </script> <input type="button" value="Get referrer" onclick="function1();"> </body> </html>
</source>
"referrer" is applied to
<source lang="javascript">
+----------------+--------------------------------------------------------------+ | Applied_To |document | +----------------+--------------------------------------------------------------+
</source>
"referrer" Syntax and Note
<source lang="javascript">
Note: Read-only property. Returns an empty string if the page has no referrer.
Syntax:
document.referrer
</source>