RE: Javascript question...

[Yee, Richard K,,DMDCWEST]

Jacob,
Why are you doing this in JavaScript to begin with? Why don't you use the
struts html tags to display the select boxes and populate the options lists
from collections. You can then set attributes in your form bean and have
these fields be defaulted automatically.

-Richard


-----Original Message-----
From: Jacob Wilson [mailto:[EMAIL PROTECTED] 
Sent: Tuesday, November 04, 2003 4:06 PM
To: [EMAIL PROTECTED]
Subject: Javascript question... 


Hi Folks...
One more javascript question...
 
I have a page that consists of date fields as select boxes... say optionDay,
optionMonth, optionYear... I fill the selectboxes calling a javascript
function... 
 
Now if I have values of day, month, year executing an action. How can I
default those values in the select box??? I mean how can I make that
particular option 'selected'??? I know we can do that by calling a funtion
on the load event...
 
But, I don't want to do it that way as my body tag is generic across all
pages... I am trying something like this...
 
<script language="javascript">
 function generateYear(optionName,defaultValue) {
  var s = document.forms[0].elements[optionName];
  var today = new Date();
  var year = today.getYear();
  document.write('<select NAME='+optionName+'>');
  document.write('<option value="year">Year</option>');
  for (var i=(year-4);i<(year+4);i++ ) {
   document.write('<option value=' + i +'>' + i+'</option>');
  }
  document.write('</select>');
 }

 function generateDay(optionName,defaultValue){
  document.write('<select NAME='+optionName+'>');
  document.write('<option value="day">Day</option>');
  for (var i=1;i<=31;i++ ) {
   document.write('<option value=' + i +'>' + i+'</option>');
  }
  document.write('</select>');
 }

 function generateMonth(optionName,defaultValue){
  document.write('<select NAME='+optionName+'>');
  document.write('<option value="month">Mon</option>');
  document.write('<option value="01">Jan</option>');
  document.write('<option value="02">Feb</option>');
  document.write('<option value="03">Mar</option>');
  document.write('<option value="04">Apr</option>');
  document.write('<option value="05">May</option>');
  document.write('<option value="06">Jun</option>');
  document.write('<option value="07">Jul</option>');
  document.write('<option value="08">Aug</option>');
  document.write('<option value="09">Sep</option>');
  document.write('<option value="10">Oct</option>');
  document.write('<option value="11">Nov</option>');
  document.write('<option value="12">Dec</option>');
  document.write('</select>');
 }
</script>
 
and in my html...
 
I say 
 
<script language="javascript">  generateMonth("optStartDtMonth",12);
 generateDay("optStartDtDay",05);  
 generateYear("optStartDtYear",2000);
</script>
 
I want to make 12, 05, 2000 selected on the load of the page... how do I do
that???
 
I am trying doing something like this...
var s = document.forms[0].elements[optionName];
if ( s.options[i].value == defaultValue) {
   s.options[i].selected = true; 
}
 
On the click of some thing it works -- if I put the code in the generate
year or month or day, if fails to recognize the form element!!!
 
Any suggestions appreciated...
 
Thanks in advance...
-Jacob


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