'Wait please ...' page
It is a common task for the web (JSP, servlets) developers. Suppose you have a very long calculation and need output some messages for users waiting your servlet's results. One solution described below deploys DHTML for solving this problem:
<html> <head> <style type="text/css"> #waitpage { position: absolute; } #mainpage { position: absolute; visibility: hidden; } </style> <script language=\"JavaScript\">
<body onLoad="init();"> <DIV ID="waitpage"> <!-- your message is here: -->
</DIV> <!-- your very very long calculation is here -->
</body>
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See also Other tips from Coldbeans.