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Protected Fields
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/*
THE JAVASCRIPT COOKBOOK by Erica Sadun, webrx@mindspring.com
Copyright (c)1998 by Charles River Media. All Rights Reserved.
This applet can only be re-used or modifed by license holders of the
JavaScript Cookbook CD-ROM. Credit must be given in the source
code and this copyright notice must be maintained. If you do
not hold a license to the JavaScript Cookbook, you may NOT
duplicate or modify this code for your own use.
Use at your own risk. No warranty is given or implied of the suitability
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Charles River Media will be held responsible for any unwanted effects
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<FONT COLOR="007777"><H1><IMG SRC="../GRAFX/UTENS.JPG" WIDTH=80 HEIGHT=50
ALIGN = LEFT>Protecting a Field</H1></FONT>
<BLOCKQUOTE><FONT COLOR="770000">
Sometimes you don't want a user to be able to write into a field.
Try activating the second field. Focus will quickly
return to the first field.
</FONT>
<FORM onSubmit="return false">
<INPUT TYPE='TEXT' NAME='F1' VALUE='Text'>
</FORM><br>
<FORM onSubmit="return false">
<INPUT TYPE='TEXT' NAME='F1'
onFocus="this.blur();this.value='';document.forms[0].F1.focus();document.forms[0].F1.select()">
</FORM><br>
</FONT></BLOCKQUOTE>
<FONT COLOR="007777"><H2>Discussion</H2></FONT>
<FONT SIZE=4>
This protection system can be bypassed if you type quickly (before
the <FONT COLOR="770000">focus</FONT> event is processed).
However, it gives a convenient, if imperfect, layer of security
to keep the reader out of protected fields.
</FONT>
<FONT COLOR="770000"><PRE>
<FORM onSubmit="return false">
<INPUT TYPE='TEXT' NAME='F1' VALUE='Text'>
</FORM><br>
<FORM onSubmit="return false">
<INPUT TYPE='TEXT' NAME='F1'
onFocus="this.blur();this.value='';document.forms[0].F1.focus();document.forms[0].F1.select()">
</FORM>
</PRE></FONT>
<h5>Copyright ©1996 by Charles River Media, All Rights Reserved</h5>
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