function cag(){
    var bodyTop = 0;
    var bodyWidth =  $(window).width();
    var left = (bodyWidth-960-270)/2;
    var right = (bodyWidth-960-478)/2;
    
    if (typeof window.pageYOffset != 'undefined') {
        bodyTop = window.pageYOffset;
    }
    else if (typeof document.compatMode != 'undefined' && document.compatMode != 'BackCompat')
    {
        bodyTop = document.documentElement.scrollTop;
    }
    else if (typeof document.body != 'undefined') {
        bodyTop = document.body.scrollTop;
    }
    
    if(bodyWidth<1000){
        $("#qqonline").hide();
        //$("#qqonline1").hide();
    }else{
        $("#qqonline").show();
        //$("#qqonline1").show();
        $("#qqonline").css("top", bodyTop+60) // ���ò��SS��ʽ�е�top����, ע��Ҫ��Сд��Ҫ��ϡ���׼��
        $("#qqonline").css("left", left)
        // ���ò�����ݣ�����ֻ����ʾ��ǰ��crollTop
        //$("#qqonline1").css("top", bodyTop)
        //$("#qqonline1").css("right", right)

    }
    
}
$(window).scroll(function() { // ҳ�淢��scroll�¼�ʱ����
    cag();
});
$(window).resize(function(){
    cag();
});
$(document).ready(function(){
    cag();
});