Displaying image based on multiple selection value(s)

Question

I have a multiple selection box that I would like to use the value's from to display images based on selecting these values, eg. if one value is selected then one image would be displayed, if two are selected two would be displayed etc. I would also like a limit on it of three images displayed at once, no matter how many selections.

<select multiple name="item" class="details" action="post" id="mySelect">
<option value="one">One</option>
<option value="two">Two</option>
<option value="three">Three</option>
<option value="four">Four</option>
</select>

Any help would be greatly appreciated, thank you!

What I've tried so far:

<script type="text/javascript"> 
<!--  
function showimage() {  
var htmlStr=""; 
var option = document.getElementById("selectedValue"); 
for (i=0;i<option.options.length;i++) { 
if (option.options[i].selected) { 
htmlStr+='<img src="/products/"; 
htmlStr+=option.options[i].value; 
htmlStr+='" /><br />'; 
} 
} 
document.getElementById('mySelect').innerHTML = htmlStr; 
}  
//--> 
</script>

The images are located in /products/..

You'll need JavaScript. Please try something and share your code when it doesn't work. We'll help you out! — Thomas Bormans
– Thomas Bormans, Commented Nov 8, 2014 at 15:59
@ThomasBormans I've added what I've tried above. It's a script I found online somewhere, which I've tried to edit to suit me. I'm not the best at javascript as I've only recently started learning it. — Josh
– Josh, Commented Nov 8, 2014 at 16:23

Billy · Accepted Answer · 2014-11-08 16:28:20Z

1

Don't forget to put correct image paths.

function imageFunc(imageid){
	
 var Imageplace=document.getElementById("myImage");
  Imageplace.src=imageid;
  }

<select multiple name="item" class="details"  id="mySelect" onchange="imageFunc(this.value)";>
<option value="1.jpg">One</option>
<option value="2.jpg">Two</option>
<option value="3.jpg">Three</option>
<option value="4.jpg">Four</option>
</select>
<img id="myImage" src="1.jpg"/>

answered Nov 8, 2014 at 16:28

Billy

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Thomas Bormans · Accepted Answer · 2014-11-08 16:38:19Z

0

Change your html to this:

<select multiple name="item" class="details" action="post" id="mySelect" onchange="showimage(this.value)">
    <option value="1">One</option>
    <option value="2">Two</option>
    <option value="3">Three</option>
    <option value="4">Four</option>
</select>

And your JavaScript to this:

function showimage(option) {
    var htmlStr="";
    if(option > 3) {
        option = 3;
    }
    for(i=0;i<option;i++) {
        htmlStr+='<img src="/products/' + i + '.jpg" /><br />';
    }
    document.getElementById('images').innerHTML = htmlStr;
}

All your images should be in the products folder with names: 1.jpg, 2.jpg, ...

answered Nov 8, 2014 at 16:38

Thomas Bormans

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