Fixed the menu to the top of the page on scroll down

Fixed the menu to the top of the page on scroll down
This is the simplest to fix menu on the top of the page when the content on scroll down
<script type="text/javascript">
var fixed_menu_hidden = true;
function dtbaker_scroll(){
var scrollTop = $(window).scrollTop();
if(scrollTop>380){
if(fixed_menu_hidden){
$('#menu-top').css('margin-top',0);
fixed_menu_hidden = false;
}
}else{
$('#menu-top').css('margin-top',-75);
fixed_menu_hidden = true;
}
}
window.onscroll = dtbaker_scroll;
$(function(){});
</script>

<style type="text/css">
#menu-top {
position:fixed;
left:0;
right:0;
top:0;
height:39px;
background:#13B8D6;
z-index:300;
margin-top: -75px;
}

Bilder: online-nrw.de

wallpaper-1019588
“MANHWA – Klassiker für Kids” erscheinen bei Ullmann Medien
wallpaper-1019588
Quality Assurance in Another World: Konkreter Starttermin bekannt + Interpreten der Theme-Songs
wallpaper-1019588
[Comic] Geschichten aus dem Hellboy Universum [13]
wallpaper-1019588
Ikoku Nikki: Anime-Adaption angekündigt + Teaser