Question

169

Change variable value using onchange

rated 0 times [ 172] [ 3] / answers: 1 / hits: 22968 / 13 Years ago, sat, september 24, 2011, 12:00:00

I want to change the value of value using a change event listener. Is it possible? Here is my sample code:

<select name=select1 onchange=updatevariable(this.value)> 

    <option value=2 >2</option>

<option value=15 >15</option> 

</select>

<script type=text/javascript>

    value = test;

    function updatevariable(data) { 

        value = data;       

    }

    alert(value); // It should be 2/15

</script>

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keric

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answered 13 Years ago ira · Accepted Answer

You have alert() in wrong place

<select name=select1 onchange=updatevariable(this.value)> 

    <option value=2 >2</option>

    <option value=15 >15</option> 

 </select>

 <script type=text/javascript>

    var value = test;

    function updatevariable(data) { 

        value = data;

        alert(value);

    } 

 </script>

In your code it is loaded right after the script is loaded,

you have to modify it to be called right after change