PDA

Click to See Complete Forum and Search --> : Disappearing Radfio Buttons

trsands
01-04-2004, 12:50 AM
I have a group of three radio buttons. BrkFst Lunch Dinner

I want the Brkfst Button to disappear after 11:30am
the Lunch to dissapear after 3:30pm

and the dinner to dissappear after 9:30pm Can I dynamically add and remove buttons from a radio group
Pittimann
01-04-2004, 01:30 AM
Hi!

Here is one of many possible ways to deal with that:

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>Untitled</title>
<script language="JavaScript" type="text/javascript">
<!--
var availableMeals="";
var doNotDisplayBeforeH=4;//hours for example: at 4.30 a.m. display of buttons start;
var doNotDisplayBeforeM=30//minutes for example: at 4.30 a.m. display of buttons start; before that no display...
function displayButtons(){
today=new Date();
hours = today.getHours();
mins= today.getMinutes();
if(hours>doNotDisplayBeforeH||(hours==doNotDisplayBeforeH&&mins>=doNotDisplayBeforeM)){
if(hours<21||(hours==21&&mins<=30)){
availableMeals='<input type="radio" name="meal" value="Dinner">&nbsp;Dinner<br>';
}
if(hours<15||(hours==15&&mins<=30)){
availableMeals='<input type="radio" name="meal" value="Lunch">&nbsp;Lunch<br>'+availableMeals;
}
if(hours<11||(hours==11&&mins<=30)){
availableMeals='<input type="radio" name="meal" value="Breakfast">&nbsp;Breakfast<br>'+availableMeals;
}
}
return availableMeals;
}
//-->
</script>
</head>
<body>
Your HTML above the form
<form name="myform">
<script language="JavaScript" type="text/javascript">
<!--
document.write(displayButtons());
//-->
</script>
</form>
Your HTML below the form
</body>
</html>

BTW - you forgot to mention, at what time of the day displaying the buttons should start. If you don't specify that, all three buttons would show up at midnight and customers might believe that they can still have dinner of the day before.

I just added doNotDisplayBeforeH to let you specify at what hour of the day display should start and doNotDisplayBeforeM for the minutes...

Cheers - Pit
trsands
01-04-2004, 07:49 PM
The system is for advanced orders so at after midnite all buttons become available. They then disappear as their time expires until midnite