function initIcheck(selector)
{
    var selector = (typeof(selector) != 'undefined') ? selector : '.iCheck'; 
    console.log('initIcheck');
    $(selector).each(function(){
    // var each element .iCheck
        var $this = $(this),
        skin = $this.attr('data-skin'),
        color = $this.attr('data-color'),
        checkbox, radio, insert = '';

        if (skin === undefined) {
            checkbox = 'icheckbox_minimal';
            radio = 'iradio_minimal';
        } else {
            checkbox = 'icheckbox_' + skin;
            radio = 'iradio_' + skin;
        }

        if (color !== undefined) {
            checkbox = checkbox + '-' + color;
            radio = radio + '-' + color;
        }

        // handle iCheck skin 'line'
        if (skin == 'line') {
            var label = $this.next(),
            label_text = label.text();

            insert = '<div class="icheck_line-icon"></div>' + label_text;
            label.remove();
        }

        // initialize
        $this.iCheck({
            checkboxClass: checkbox,
            radioClass: radio,
            insert: insert,
            increaseArea: '30%' // optional
        });
    });
}