dropdown to dropdown

by lokointhehouse2

HTML

<select id="cat">
    <option val="cars">cars</option>
    <option val="phones">phones</option>
    <option val="names">names</option>
    <option val="colors">colors</option>
</select>

<select id="item">

</select>

JavaScript

cars=new Array("Mercedes","Volvo","BMW","porche");
phones=new Array('Samsung','Nokia','Iphone');
names=new Array('Kasper','Elke','Fred','Bobby','Frits');
colors=new Array('blue','green','yellow');

populateSelect();

$(function() {

      $('#cat').change(function(){
        populateSelect();
    });
    
});


function populateSelect(){
    cat=$('#cat').val();
    $('#item').html('');
    
       eval(cat).forEach(function(t) { 
            $('#item').append('<option>'+t+'</option>');
        });
    }