Question

Show/Hide multiple layers based on value from radio group

Asked by: adamlund

Hi All,

I have a form where if you select a radiobox from a radio group it highlights a corresponding layer but hides all other layers.  The values from the radio box are numbered 1 to 6.  The divs are numbered div1 (corresponding to value=1 from radio group), div2, div3 etc.  I can get the current value of the checked radio box but I am having problems looping through the divs allowing a show/hide facility.  

Any help much appreciated.

Adam

<html>
<head>
<style type="text/css">
div {width:300px; height:50px; background-color:#99FF66; visibility:hidden;}
</style>
<script language="javascript">
function showhide() {
 
for (var i=0; i < 6; i++)
   {
   if (document.form1.reference_type[i].checked)
      {
      var ref_val = document.form1.reference_type[i].value;
      }
   }
 
for (var j = 1; j <7; j++)
	{
	var division = 'div'+j;
	if (j == ref_val)
	{
	document.getElementById('division').style.visibility = 'visible';
	document.getElementById('division').style.height = 'auto';
	}
	else 
	{
	document.getElementById('division').style.visibility = 'hidden';
	document.getElementById('division').style.height = 0;
	}
	}
}
</script>
</head>
 
<body>
<form name="form1" method="post" action="">
  <p>
    <label>
    <input type="radio" name="reference_type" value="1" onClick="showhide();"> 
    Div1</label>
    <br>
    <label>
    <input type="radio" name="reference_type" value="2" onClick="showhide();">
    Div2<br>
    <input type="radio" name="reference_type" value="3" onClick="showhide();"> 
    Div3
</label>
    <br>
    <label>
    <input type="radio" name="reference_type" value="4" onClick="showhide();"> 
    Div4
<br>
<input type="radio" name="reference_type" value="5" onClick="showhide();"> 
Div5
</label>
    <br>
    <label>
    <input type="radio" name="reference_type" value="6" onClick="showhide();"> 
    Div6
</label>
    <br>
  </p>
</form>
<div id="div1" style="visibility:visible; ">div1</div>
<div id="div2">div2</div>
<div id="div3">div3</div>
<div id="div4">div4</div>
<div id="div5">div5</div>
<div id="div6">div6</div>
</body>
</html>

                                  
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Asked On
2008-07-10 at 13:02:32ID23555247
Tags

Javascript

Topic

JavaScript

Participating Experts
2
Points
500
Comments
8

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Answers

 

by: cem_turkPosted on 2008-07-10 at 13:17:10ID: 21976975

<html>
<head>
<style type="text/css">
div {width:300px; height:50px; background-color:#99FF66; display:none;}
</style>
<script language="javascript">
function showhide(selectedRadioButton) {
var selectedRadioButtonNumber=selectedRadioButton.value;
 
for (var j = 1; j <7; j++)
        {
        var division = 'div'+j;
        if (j == selectedRadioButtonNumber)
        {
        document.getElementById(division).style.display = 'block';
               }
        else 
        {
        document.getElementById(division).style.display = 'none';
              }
        }
}
</script>
</head>
 
<body>
<form name="form1" method="post" action="">
  <p>
    <label>
    <input type="radio" name="reference_type" value="1" onClick="showhide(this);"> 
    Div1</label>
    <br>
    <label>
    <input type="radio" name="reference_type" value="2" onClick="showhide(this);">
    Div2<br>
    <input type="radio" name="reference_type" value="3" onClick="showhide(this);"> 
    Div3
</label>
    <br>
    <label>
    <input type="radio" name="reference_type" value="4" onClick="showhide(this);"> 
    Div4
<br>
<input type="radio" name="reference_type" value="5" onClick="showhide(this);"> 
Div5
</label>
    <br>
    <label>
    <input type="radio" name="reference_type" value="6" onClick="showhide(this);"> 
    Div6
</label>
    <br>
  </p>
</form>
<div id="div1" style="display:block">div1</div>
<div id="div2">div2</div>
<div id="div3">div3</div>
<div id="div4">div4</div>
<div id="div5">div5</div>
<div id="div6">div6</div>
</body>
</html>

                                              
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by: cem_turkPosted on 2008-07-10 at 13:21:17ID: 21977013

ps: your label tags are not nested correctly, you need to place them correctly.

 

by: GoofyDawgPosted on 2008-07-10 at 13:30:41ID: 21977097

Fixed your HTML up a bit. With the new showhide(), I added a parameter that would be passed directly from the radio button. That way you don't have to interrogate the form element for its value. The function already has it. Then it's just a matter of doing some simple logic to show and hide the divs.

BTW, for something like this, using the "visibility" CSS attribute is not a good idea as the space that the divs take up does not go away when you set them to hidden. display:none and display:"" is much better.

Anyway, code is below:

<html>
<head>
<style type="text/css">
div {width:300px; height:50px; background-color:#99FF66;}
</style>
<script language="javascript">
function showhide(val) {
  for (var i=1;i<=6;i++) {
    var d = document.getElementById("div" + i);
    d.style.display = (i==val) ? "" : "none";
  }
} 
</script>
</head>
 
<body>
<form name="form1" method="post" action="">
  <p>
    <label>Div1</label>
    <input type="radio" name="reference_type" value="1" onClick="showhide(this.value);">
    <br>
    <label>Div2</label>
    <input type="radio" name="reference_type" value="2" onClick="showhide(this.value);">
    <br>
    <label>Div3</label>
    <input type="radio" name="reference_type" value="3" onClick="showhide(this.value);"> 
    <br>
    <label>Div4</label>
    <input type="radio" name="reference_type" value="4" onClick="showhide(this.value);"> 
    <br>
    <label>Div5</label>
    <input type="radio" name="reference_type" value="5" onClick="showhide(this.value);"> 
    <br>
    <label>Div5</label>
    <input type="radio" name="reference_type" value="6" onClick="showhide(this.value);"> 
    <br>
  </p>
</form>
<div id="div1">div1</div>
<div id="div2" style="display:none;">div2</div>
<div id="div3" style="display:none;">div3</div>
<div id="div4" style="display:none;">div4</div>
<div id="div5" style="display:none;">div5</div>
<div id="div6" style="display:none;">div6</div>
</body>
</html>

                                              
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by: GoofyDawgPosted on 2008-07-10 at 13:31:33ID: 21977101

Damn! Didn't know someone already submitted a solution (solution count was 0 when I looked at this). Oh well, you have two ways of looking at the problem now... :)

 

by: adamlundPosted on 2008-07-10 at 13:50:27ID: 21977277

Hi cem_turk,

Many thanks for your code but I have to give GoofyDawg the points as for some reason it would not work properly in Firefox 3 (which I think is where I was having my problems).  It works in Opera and IE7.  For some reason if you clicked on radio box 3 (Div3) or 5 (Div 5) it would automatically check Div 2 and Div 4, respectively, instead.  Just thought I would mention it as it seems a really wierd problem.

Adam

 

by: cem_turkPosted on 2008-07-10 at 14:14:59ID: 21977455

@adamlund
my code works correctly, if you nest the label tags correctly, as i mentioned above.

 

by: adamlundPosted on 2008-07-10 at 14:52:37ID: 21977703

My misunderstanding cem_turk, I did not realise you were refering to the labels being integral to the functioning of the script.  Many thanks for your time, Adam

 

by: cem_turkPosted on 2008-07-10 at 15:41:59ID: 21977999

your welcome

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