Question

Show Hide using Form drop down and submitting resulting value.

Asked by: mrslate1

I have the below code which works great for showing or hiding an image. But I need to be able to pass a particular value when the form is submitted, while showing a thumbnail of the selection .How would I go about doing this?

<html>
<head>
     <title>Titled</title>
<script language="JavaScript">
var actDiv;
function chklayer(v) {
  if (actDiv) {
    actDiv.style.display="none";
  }
  if(v>0){
    actDiv = document.getElementById("Layer"+v);
    actDiv.style.display="block";
  }
}
</script>
</head>
 
<body>
<form name="form1" method="post" action="">
<div style="position:absolute; left:200px; top:150px; width:455px; height:131px; z-index:1;"> 
  <div id="Layer1" style="display:none;"> 
  Content 1 </div>
  <div id="Layer2" style="display:none;"> 
    Content 2</div>
  <div id="Layer3" style="display:none;"> 
    Content 3 </div>
</div>  
  <p>&nbsp;</p>
  <p>
    <select name="type" onchange="chklayer(this.value);">
      <option value="0">Please Select:</option>
      <option value="1">Add a Report</option>
      <option value="2">Manage a Report</option>
       <option value="3">File Upload snd Report Usage</option>
    </select>
  </p>
  <p>&nbsp;</p>
  <p>&nbsp;</p>
</form>
 
</body>
</html>

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Asked On: 2009-09-24 at 12:46:06ID24759818
Tags: JavaScript
,; Forms
Topic: JavaScript
Participating Experts: 1
Points: 500
Comments: 4

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Answers

by: wuff1ukPosted on 2009-09-24 at 15:43:45ID: 25418695

I don't understand your question. What particular value do you want to submit and what do you mean with thumbnail of the selection ?!

BTW: It's always a good idea not only to have an onchange event in a selection but also an onkeyup event. The onchange is not triggered, when the user tabs or clicks on the selection and uses keys to jump to a particular list item. Just add onkeyup="chklayer(this.value);" to the select tag as well.

by: mrslate1Posted on 2009-09-25 at 07:45:58ID: 25423504

Thanks for your comment and tip . My question has changed a bit.

What I am actually trying to do ... I have a form I created that asks two questions in particular. What card you wish selected, and what kind of container you wish to put it in.

So I have figured out the actual code to send the variable, but don't quite know how to create the same function without effecting the first show hide. In other words, When someone makes one choice via Drop Down selection, one image appears and stays visable. when the other selection is made, the other image appears and stays visible.

Hope this makes sense.

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
 
<html>
<head>
	<title>Untitled</title>
</head>
 
<body>
<!-- Todd Matzke 9-09 - Begin section for showing selected card icon -->
 
<table>
<tr>
 <td class="formtext" align="center">
<!-- Todd Matzke Show hide JavaScript for thumbnail viewing -->
<script language="JavaScript">
var actDiv;
var actDiv2;
function chklayer(v) {
  if (actDiv) {
    actDiv.style.display="none";
  }
  // 13 is equal to the Select option in the second drop-down, ensure it is up-to-date when modifying
  if(v>0 && v != 13){
    actDiv = document.getElementById("Layer"+v);
    actDiv.style.display="block";
  }
}
</script>
 
 
                 
 
              
                         <select name="" onchange="chklayer(this.options.selectedIndex);">
						 <option selected>Select
						<option value="Branded Bullseye"/>Branded Bullseye
						  <option value="Peeking Puppy"/>Peeking Puppy
						  <option value="Nested Boxes"/>Nested Boxes
						  <option value="Nice Work"/>Nice Work
                          <option value="Auto Dog"/>Auto Dog
						  <option value="Dr. Dog"/>Dr. Dog
						  <option value="Puppy with Newspaper"/>Puppy with Newspaper
						  <option value="Hard Hat Puppy"/>Hard Hat Puppy
						  <option value="Sticky Notes English"/>Sticky Notes English
						  <option value="Sticky Notes Spanish"/>Sticky Notes Spanish
						    <option value="Thanks Bubble"/>Thanks Bubble
							<option value="Reindeer Wreath"/>Reindeer Wreath
						</select>
						<!-- Todd Matzke Begin Div area for each Gift Card thumbnail -->
<div id="Layer1" style="display:none;">Image 1b</div>
<div id="Layer2" style="display:none;">Image 2a</div>
<div id="Layer3" style="display:none;">Image 3a</div>
<div id="Layer4" style="display:none;">Image 4a</div>
<div id="Layer5" style="display:none;">Image 5a</div>
<div id="Layer6" style="display:none;">Image 6a</div>
<div id="Layer7" style="display:none;">Image 7a</div>
<div id="Layer8" style="display:none;">Image 8a</div>
<div id="Layer9" style="display:none;">Image 9a</div>
<div id="Layer10" style="display:none;">Image 10a</div>
<div id="Layer11" style="display:none;">Image 11a</div>
<div id="Layer12" style="display:none;">Image 12a</div>
		<!-- Todd Matzke End Div area for each Gift Card thumbnail -->
		<!-- When adding a new option ensure that you increase the below select offset by 1 -->
                      </td>
<!-- Todd Matzke 9-09 - End section for showing selected card icon -->
<td>
 
	 </select>
 
                      <td class="formtext" align="center">
<!-- Todd Matzke 9-09 - Begin section for showing selected Card Carriericon -->
  
<script language="JavaScript">
var actDiv;
var actDiv2;
function chklayer2(v) {
  if (actDiv) {
    actDiv.style.display="none";
  }
  // 13 is equal to the Select option in the second drop-down, ensure it is up-to-date when modifying
  if(v>0 && v != 13){
    actDiv = document.getElementById("Layer"+v);
    actDiv.style.display="block";
  }
}
</script>
 
                        <select name="table_buy_3_1" onchange="chklayer2(this.options.selectedIndex + 13);">
						  <option selected>Select
                          <option value="Bulk"/>Bulk
                          <option value="Standard"/>Standard
                          <option value="Tri-Fold"/>Tri-Fold
                        </select>
<div id="Layer14" style="display:none;">Image 1b</div>
<div id="Layer15" style="display:none;">Image 2b</div>
<div id="Layer16" style="display:none;">Image 3b</div>
<!-- Todd Matzke 9-09 - End section for showing selected Card Carriericon -->
                      </td>
 
</tr>
</table>
 
 
</body>
</html>

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by: wuff1ukPosted on 2009-09-25 at 15:24:51ID: 25427768

I've cleaned up your code and rewrote the javascript function to be more flexible and dynamic.
The divs for each selection should have a different 'basename'. I left the first batch of images under the basename 'Layer' and set the second batch to the basename 'tablebuy_'. The function now uses three parameters, the first parameter is the basename of the div group, the second remains the index number of the option and the third would be a temporary global variable name. If two selects use the same global variable, then you'll have the flipflop effect you had in your previous script where the selection of one dropdown will clear the selection of the other. If you set different temp names (I've used actDiv and actDiv2 as per your script), then they will not flip but retain their individual states.

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
    <title>Untitled</title>
</head>
<body>
 
<script language="JavaScript">
function chklayer(l,v,tmp) { //l=label id, v=index, tmp=global variable for selection
    if (window[tmp]) {
        window[tmp].style.display="none";
    }
    if(v>0){
        window[tmp] = document.getElementById(l+v);
        window[tmp].style.display="block";
    }
}
</script>
 
<table>
<tr>
    <td class="formtext" align="center">
        <select name="" onchange="chklayer('Layer',this.options.selectedIndex,'actDiv');">
            <option selected>Select
            <option value="Branded Bullseye"/>Branded Bullseye
            <option value="Peeking Puppy"/>Peeking Puppy
            <option value="Nested Boxes"/>Nested Boxes
            <option value="Nice Work"/>Nice Work
            <option value="Auto Dog"/>Auto Dog
            <option value="Dr. Dog"/>Dr. Dog
            <option value="Puppy with Newspaper"/>Puppy with Newspaper
            <option value="Hard Hat Puppy"/>Hard Hat Puppy
            <option value="Sticky Notes English"/>Sticky Notes English
            <option value="Sticky Notes Spanish"/>Sticky Notes Spanish
            <option value="Thanks Bubble"/>Thanks Bubble
            <option value="Reindeer Wreath"/>Reindeer Wreath
        </select>
 
        <div id="Layer1" style="display:none;">Image 1a</div>
        <div id="Layer2" style="display:none;">Image 2a</div>
        <div id="Layer3" style="display:none;">Image 3a</div>
        <div id="Layer4" style="display:none;">Image 4a</div>
        <div id="Layer5" style="display:none;">Image 5a</div>
        <div id="Layer6" style="display:none;">Image 6a</div>
        <div id="Layer7" style="display:none;">Image 7a</div>
        <div id="Layer8" style="display:none;">Image 8a</div>
        <div id="Layer9" style="display:none;">Image 9a</div>
        <div id="Layer10" style="display:none;">Image 10a</div>
        <div id="Layer11" style="display:none;">Image 11a</div>
        <div id="Layer12" style="display:none;">Image 12a</div>
    </td>
    <td class="formtext" align="center">
        <select name="table_buy_3_1" onchange="chklayer('tablebuy_',this.options.selectedIndex,'actDiv2');">
            <option selected>Select
            <option value="Bulk"/>Bulk
            <option value="Standard"/>Standard
            <option value="Tri-Fold"/>Tri-Fold
        </select>
        <div id="tablebuy_1" style="display:none;">Image 1b</div>
        <div id="tablebuy_2" style="display:none;">Image 2b</div>
        <div id="tablebuy_3" style="display:none;">Image 3b</div>
    </td>
</tr>
</table>
  
</body>
</html>

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Select all Open in new window

by: mrslate1Posted on 2009-09-25 at 15:58:50ID: 31633228

Thank you very much. I really appreciate your eye and hard coding work!

20120131-EE-VQP-002

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Forms

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