The Link/Status Thing

• Events are actions, code waits for events to happen before executing
• window.status is a variable that you can set that effects the system
• Algorithm is 'set it when enter, reset it when leave.'
• Quote marks important, get it right.
• Case matters, especially for Netscape

Last Modified

• Many languages are possible, but only javascript is supported
• <!-- means comment to HTML
• document.write is a proceedure, like a verb.  Different from variables because it takes arguments ()
• // is a comment in Javascript
• Result is to replace this code with the output of this code.

Alert Box v1

• alert is a proceedure, just like document.write.  Notice the ()
• If the code is just sitting in the document, without any events, it just runs.
• What does this code do?

Alert Box v2

• This lives in an href.  Since hrefs don't act until you click them, this code waits for you to click before clicking.

Working with Forms

<FORM NAME="sample" METHOD=POST
                             ACTION="/cgi-bin/homestead/mail.pl?member_name">
                         Enter your name : <INPUT TYPE=TEXT NAME="yourname" SIZE=30><BR>
                          Enter your age : <INPUT TYPE=TEXT NAME="yourage" SIZE=3><BR>
                           Date of birth : <INPUT TYPE=TEXT NAME="yourdob" SIZE=10><BR>
                         <INPUT TYPE=SUBMIT> <INPUT TYPE=RESET>
                     </FORM>

<SCRIPT LANGUAGE="JavaScript">
                         <!-- Hide code from non-js browsers
                         function validateForm1()
                         {
                             formObj = document.sample;
                             if ((formObj.yourname.value == "") ||
                                 (formObj.yourage.value  == "") ||
                                 (formObj.yourdob.value  == "")) {
                                 alert("You have not filled in all the fields.");
                                 return false;
                             }
                             else
                                 return true;
                         }
                         // end hiding -->
                     </SCRIPT>