Question

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Use created attribute with javascript in select list

im trying to access an attribute that i created in a select list.

<script language="JavaScript">
function updateUrl()
    {
        var newUrl = document.getElementById('test').getAttribute('car');
        alert(newUrl);
    }
</script>

<select name= "test" id= "test" onChange= "updateUrl()">
     <option value="1" selected="selected" car="red">1</option> 
     <option value="2" car="blue" >2</option> 
     <option value="3" car="white" >3</option> 
     <option value="4" car="black" >4</option>    
</select>

it keep giving me null. how do i get the value from attribute car?

Answer 1

If you meant get the value from the car attribute of the selected option:

//get the option's car attribute at selectedIndex
var car = document.getElementById('test').options[select.selectedIndex].car;