form validation

form.js

    for( var key in req ){
        var value = req[key];
        $('input[type="text"][name="'+key+'"]').val(value);
        $('input[type="checkbox"][name^="'+key+'"]').removeAttr('checked');
        $('input[type="checkbox"][name="'+key+'"][value="'+value+'"]').attr('checked','checked');
        if( typeof value === 'object' ){
            for(var i=0;i<value.length;i++){
                var check   = value[i];
                $('input[type="checkbox"][name^="'+key+'"][value="'+check+'"]').attr('checked','checked');
            }
        }
        $('select[name="'+key+'"] option').removeAttr('selected').filter('[value="'+value+'"]').attr('selected','selected');
        $('textarea[name="'+key+'"]').val(value);
    }