on click window scroll top code example
Example 1: javascript scroll to top onclick
$("#scroll_icon").click(function()
{
jQuery('html,body').animate({scrollTop:0},2000);
})
Example 2: javascript scroll to top onclick
window.scroll({top: 0, left: 0});
//Or with jQuery
$('html,body').scrollTop(0);
//with animation
$('html, body').animate({ scrollTop: 0 }, 'fast');