Language Java Script Definitive Examples 12.1.TXT

 <!-- This example is from the book _JavaScript: The Definitive Guide_.     -->
<!-- Written by David Flanagan.  Copyright (c) 1996 O'Reilly & Associates. -->
<!-- This example is provided WITHOUT WARRANTY either expressed or implied.-->
<!-- You may study, use, modify, and distribute it for any purpose.        -->
<SCRIPT>
// Here's a function that uses the alert() method to tell the user
// that their form submission will take some time, and that they should
// be patient.  It would be suitable for use in the onSubmit() event handler
// of an HTML form.  
// Note that all formatting is done with spaces, newlines, and underscores.
function warn_on_submit()
{
    alert("\n__________________________________________________\n\n" +
          "                  Your query is being submitted....\n"    +
          "__________________________________________________\n\n"   +
          "Please be aware that complex queries such as yours\n"     +
          "     can require a minute or more of search time.\n\n"    +
          "                         Please be patient.");
}

// Here is a use of the confirm() method to ask the user if they really
// want to visit a Web page that takes a long time to download.  Note that
// the return value of the method indicates the user response.  Based
// on this response, we reroute the browser to an appropriate page

var msg =index.html "\nYou are about to experience the most\n\n" +
          "                -=| AWESOME |=-\n\n" +
          "Web page you have ever visited!!!!!!\n\n" +
          "This page takes an average of 15 minutes to\n" +
          "download over a 28.8K modem connection.\n\n" +
          "Are you ready for a *good* time, Dude????";

if (confirm(msg)) 
    location.replace("awesome_page.html");
else
    location.replace("lame_page.html");

// Here's some very simple code that uses the prompt() method to get
// a user's name, and then uses that name in dynamically generated HTML.
n = prompt("What is your name?", "");
document.write("<hr><h1>Welcome to my home page, " + n + "</h1><hr>");
</SCRIPT>