improved functionality

hi,
i’ve found, that setting

html, body { height: 100%; } /* it may be any value set */

makes To Top not working (button is not displayed), but I’ve found solution – you need to check ‘window’ and ‘body’ for scrollTop, and set .scroll( fnScroll ) for ‘body’ also in to-top-public.js.
mozilla and chromium-based browsers verified (but not webkit)

see code (modified to-top-public.js content):
———————————————
( function ( $ ) {
“use strict”;
$( function () {
var container = $( “#to_top_scrollup” ).css( {
opacity: 0,
} );
var data = to_top_options;
var mouse_over = false;
var hideEventID = 0;
var fnHide = function () {
clearTimeout( hideEventID );
if (container.is( “:visible” )) {
container.stop().fadeTo( 200, 0, function () {
container.hide();
mouse_over = false;
} );
}
};
var fnHideEvent = function () {
if ( !mouse_over && data.enable_autohide == 1 ) {
clearTimeout( hideEventID );
hideEventID = setTimeout( function () {
fnHide();
}, data.autohide_time * 1000 );
}
};
var scrollHandled = false;
var fnScroll = function () {
if ( scrollHandled )
return;
scrollHandled = true;
if ( $( window ).scrollTop() > data.scroll_offset || $( “body” ).scrollTop() > data.scroll_offset ) { // jmsz changed
container.stop().css( “opacity”, mouse_over ? 1 : parseFloat( data.icon_opacity / 100 ) ).show();
fnHideEvent();
} else {
fnHide();
}
scrollHandled = false;
};
if ( “undefined” != typeof to_top_options.enable_hide_small_device && “1” == to_top_options.enable_hide_small_device ) {
if ( $( window ).width() > to_top_options.small_device_max_width ) {
$( window ).scroll( fnScroll );
$( document ).scroll( fnScroll );
$( “body” ).scroll( fnScroll ); // jmsz added
}
} else {
$( window ).scroll( fnScroll );
$( document ).scroll( fnScroll );
$(“body”).scroll( fnScroll ); // jmsz added
}
container
.hover( function () {
clearTimeout( hideEventID );
mouse_over = true;
$( this ).css( “opacity”, 1 );
}, function () {
$( this ).css(“opacity”, parseFloat( data.icon_opacity / 100) );
mouse_over = false;
fnHideEvent();
} )
.click(function () {
$( “html, body” ).animate( {
scrollTop: 0,
}, 400 );
return false;
} );
} );
} )( jQuery );