How to save data when closing the window in asp javascript_javascript skills

How to save data when closing the window

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Use onunload event to open the above file

quit.asp A file that saves data. The above file is used to detect whether the window is closed or refreshed.

IE5 is compatible. In the past, window.opener.closed was used to determine, but IE5 does not support the closed attribute.
The above code has been tested many times and no problems have been found for the time being <script> <BR>　　function IfWindowClosed() <BR>　　{　　 <BR>　　　　var win = null; <BR>　　　　try <BR>　　　　{ <BR>　　　　　　window.opener.name = "ss"; <BR>　　　　　　if ( window.opener.name != "ss" ) <BR>　　　　　　{ <BR>　　　　　　　　win = window.open("quit.asp","","width=100,height=100,left=10000,top=10000"); <BR>　　　　　　　　window.setTimeout("window.close();",0); <BR>　　　　　　} <BR>　　　　　　window.opener.name = ""; <BR>　　　　} <BR>　　　　catch(e) <BR>　　　　{ <BR>　　　　　　win = window.open("quit.asp","","width=100,height=100,left=10000,top=10000"); <BR>　　　　　　window.setTimeout("window.close();",0); <BR>　　　　} <BR>　　} <BR>　　 <BR>　　window.setInterval("IfWindowClosed()",100); <BR>　　window.setTimeout("window.close();",510); <BR></script>