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form and dhtml

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freeart

freeart

Programmer
Dec 19, 2000
2
US
I am a web designer and am only good in html but understand dhtml and javascript code. I am trying to do a form questionnaire and halfway through there is a yes/no question. Based on the answer the rest of the form changes.

Is there a way that when someone answers yes, some questions pop up on the same page and when they answer no, different questions show up?

I want to avoid taking them to another page based on that answer, rather I want to keep them on the same page.

 
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Yes you can hide and show elements like this in IE:

element.style.visibility="visible"
element.style.visibility="hidden"

in NS like this:

document.layers.element.visibility="show"
document.layers.element.visibility="hide"

it will work in any element in IE, but only absolutely positioned layers in NS prior to version 6. NS6+ can use the same syntax as IE above.
jared@aauser.com
 
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Hiya, I'm don't know about layers in a page, they probably work far better then this, but it's here if you want to try it, and adjust it to future needs.
Using the onBlur function a user clicks say a radio button between 2 or more choices) and depending upon which he presses, he is sent to a different function, and therefor a different page. Anyhow try it, and let me know how badly it goes wrong! I'm very new to all this, just thought I should contribute something to this forum, as it's helped me so much!

<html>
<body>
<form>

Yes <input name=&quot;yes&quot; type=&quot;radio&quot; value=&quot;yes&quot; onBlur=&quot;goForm()&quot;>

No <input name=&quot;no&quot; type=&quot;radio&quot; value=&quot;no&quot; onBlur=&quot;goForm2()&quot;>
</form>

<script language=VBScript>
Sub goForm()
location.href=&quot;/index.hm&quot;
End Sub
Sub goForm2()
msgbox &quot;you did squat!&quot;
End Sub
</script>
</body>
</html>
 
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Nonsense - JavaScript can add elements to droplist boxes, change the wording of questions and the number/content of answers. No need to work with layers. Go to click on programming, on JavaScript and look for the chapter on forms - it's all there.
 
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&quot;Really, stay away from layers&quot; --> if you're using netscape<6 you'll be in trouble then !!
 
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Antek - please give me an example. Lets say we have a question:

How old are you? <input type=text id=&quot;age&quot; name=&quot;age&quot;>

How do I change the &quot;How old are you?&quot; part, I'm very curious. jared@aauser.com
 
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Hello all,

Thank you for your help. I appreciate it. I have got it working in explorer through a different function I found on msdn.com which is something like this...

<div style=&quot;cursor: hand&quot; onclick=&quot;toggle document.all.HideShow);&quot;>
Click Here</div>
<span style=&quot;color: blue&quot; id=HideShow>This will go away<br></span>
This is some text


<script>
function toggle(e) {
if (e.style.display == &quot;none&quot;) {
e.style.display = &quot;&quot;;
} else {
e.style.display = &quot;none&quot;;
}
}
</script>


Now, only to get it working in Netscape. I'm reviewing webmonkey to handle the netscape issue. Thanks for all your help. It was quite great to get this response.

Regards,

rafid@focusg.com
 
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to make it work for netscape, it won't be that tough as you already call a function

jsut add the if(document.layers) to detect which browser, then e.style.visibility=&quot;hide&quot; for netscape - i've done it and it works

good luck :)
 
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oops iza - not e.style..visibility you just want e.visibility for NS ;) jared@aauser.com
 
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oups !!! thanx jaredn :)
about the How do I change the &quot;How old are you?&quot; part i suppose it's feasible, but only if &quot;How old are you&quot; is the LABEL of the input field - then it's a property of an object and then it's easy to modify
antek's right, there are other ways than hiding/showing, but hide and show is easier ...
 
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not so,labels are not supported in NS ( according to O'reilly's Dynamic HTML - Definitive Reference) jared@aauser.com
 
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the only good think i can see in ns is that at least it is a challenge ...
would it be possible to add the label property to the prototype of the textfield object, just like you add a new method (.... as the same time i'm writing this, i'm beginning to think &quot;errrr maybe those prototype redefinitions are allowed only in ie ...&quot;)
 
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prototypes work in both browsers, but not on HTML elements - (IE 5+ allows behaviors, which kinda do this, but not &quot;the other browser&quot;) jared@aauser.com
 
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ok thanx !!! i'm sorry i didn't have much time to go &amp; read about the prototypes/behaviour that's why i keep asking and asking ... i'll go for sure get some reading and then i come back :)
 
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