Question

I have a two drop downs namely Min Price and Max Price, i want to change the second drop-down value based on the first selection.

Say example 1st drop-down selection is 100 means, 2nd drop-down value should be greater than the 100, if it is 200 in 1st, value of 2nd should be greater than 200

Any idea in jQuery or js?

Answer 1

Simplest i could think of ( this allows you to go back in your choices, you can select 400 and then 200 and everything works )

<select id='min'>
<option value='100'>100</option>
<option value='200'>200</option>
<option value='300'>300</option>
<option value='400'>400</option>
</select>
<select id='max'>
<option value='100'>100</option>
<option value='200'>200</option>
<option value='300'>300</option>
<option value='400'>400</option>
</select>​

var removed;

$('#min').change( function() {
    var value = this.value;
    $('#max').prepend(removed);
    var toKeep = $('#max option').filter( function( ) {
        return parseInt(this.value, 10) >= parseInt( value, 10);
    } );
    removed =  $('#max option').filter( function( ) {
        return parseInt(this.value, 10) < parseInt( value, 10);
    } );
    $('#max').html(toKeep);
});​

http://jsfiddle.net/NjLNF/2/

EDIt – added parseInt() as per comment