function chaptchaCorrection(){
    var img = document.getElementsByTagName("img");
    var chaptcha = new Image();
    var time = new Date;
    time = time.getTime();
    for(i=0;i<img.length;i++){
        if(img[i].getAttribute("src").indexOf("chaptcha") != -1){
            chaptcha.src = img[i].getAttribute("src")+ "?cid=" + time;
            img[i].src = chaptcha.src;
        }
    }
}