javascript - Slowly scroll the content of a div on hover and stop on mouseoff -

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please take @ website

i'm trying implement 2 arrows on top , bottom of gallery when people mouse on arrows, content scroll top , bottom respectively.

here code i'm using scrolls content down when hover on bottom arrow. there 2 issues it:

  1. i want scrolling stop when user mouses off

  2. hopefully not display arrow(s) if there no more content left scroll

    if ( $("body").hasclass('projects') ) {     $("#jig1").height($(document).height() - 187);      $("#scroll-to-bottom").hover(         function () {             $("#jig1").animate({ scrolltop: $(document).height() }, 10000);         },         function () {          }     ); }

can offer improved solution?

answer seccond question. add inner wrapper divs blocks html should this

<div id="jig1">    <div id="jig1inner">      ... here put rest of code 
if ($("body").hasclass('projects'))  {     $("#jig1").height($(document).height() - 187);      var watchscrollers = function()     {         var tmp = $("#jig1inner").height() - $("#jig1").height();         if (tmp == $("#jig1").scrolltop())          {             $("#scroll-to-bottom").css("visibility","hidden");         }         else         {             $("#scroll-to-bottom").css("visibility","visible");         }         if ($("#jig1").scrolltop() == 0)          {             $("#scroll-to-top").css("visibility","hidden");         }         else         {             $("#scroll-to-top").css("visibility","visible");         }     }      $("#scroll-to-bottom").unbind("hover").hover(function() {         $("#jig1").stop().animate({scrolltop: $("#jig1inner").height() - $("#jig1").height()}, 10000);     }, function() {         $("#jig1").stop(); //stops animation         watchscrollers();     });     $("#scroll-to-top").unbind("hover").hover(function() {         $("#jig1").stop().animate({scrolltop: 0}, 10000);     }, function() {         $("#jig1").stop(); //stops animation         watchscrollers();     });     watchscrollers(); }

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