Redirect on select option in select box

Answer 1

I'd strongly suggest moving away from inline JavaScript, to something like the following:

function redirect(goto){
    var conf = confirm("Are you sure you want to go elswhere?");
    if (conf && goto != '') {
        window.location = goto;
    }
}

var selectEl = document.getElementById('redirectSelect');

selectEl.onchange = function(){
    var goto = this.value;
    redirect(goto);

};

JS Fiddle demo (404 linkrot victim).
JS Fiddle demo via Wayback Machine.
Forked JS Fiddle for current users.

In the mark-up in the JS Fiddle the first option has no value assigned, so clicking it shouldn't trigger the function to do anything, and since it's the default value clicking the select and then selecting that first default option won't trigger the change event anyway.

Update:
The latest example's (2017-08-09) redirect URLs required swapping out due to errors regarding mixed content between JS Fiddle and both domains, as well as both domains requiring 'sameorigin' for framed content. - Albert