jQuery(window).scroll(function(){
    var scrollTop = jQuery(document).scrollTop();
    //console.log("scrollTop : " + scrollTop);
    if (scrollTop < 1000) {
        scrollTop = 1000;
    }
    jQuery("#con2_mo1").stop();
    jQuery("#con2_mo1").animate({height:'100px'},1000, 'easeOutQuart');
});