var mlast_scrool = 0;
var mscrooling = 57;
var mbottom = false;
$(function(){
$(document).scroll(mmenuscrool);
$( window ).resize(mmenuscrool);
mmenuscrool();
});
function mmenuscrool() {
if(document.getScroll()>=150 && $(window).width()>764){
$('.block-categories').css('position', 'fixed');
$('.block-categories').width($('.block-categories').parent().width());
if($(window).height()<$('.block-categories').height()){
if(mlast_scrool