Object does not support property or method attachEvent

Question

i use library enquire.js, good library, but have some problem, in ie8. console have message "Object does not support property or method addListener" in file enquire.js, ok, use google and found solution:

if("addEventListener" in this.mql) {
        this.mql.addListener(this.listener);
    } else {
        this.mql.attachEvent('onclick', function(){
            console.log('ssss');
            this.listener;
    });
}

ok, now, i have message "Object does not support property or method attachEvent". Any ideas?