mathsnz.github.io/jsindex.js at master · mathsnz/mathsnz.github.io · GitHub

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function init() {
  var distanceY = window.pageYOffset || document.documentElement.scrollTop,
  minsize = 30,
  startingpoint = $('#logotable').height()+160;
  leftright = startingpoint - 60;
  $('body').css('padding-top',(startingpoint+25)+'px');
  size = startingpoint - distanceY;
  imgheight = startingpoint - 30 - distanceY;
  maxheight = startingpoint - 30 - leftright;
  if (minsize > size) {
      $("#header").css( "height", minsize+"px" );
  } else {
      $("#header").css( "height", size+"px" );
  }
  if (distanceY > leftright) {
          $("#smalllogo").css( "display", "inline" );
          $("#smalllogo").css( "float", "left" );
          $("#smalllogo").css( "max-height", maxheight+"px" );
  } else {
          $("#smalllogo").css( "display", "none");
  }
    window.onresize = function(event) {
      var distanceY = window.pageYOffset || document.documentElement.scrollTop,
      minsize = 30,
      startingpoint = $('#logotable').height()+160;
      leftright = startingpoint - 60;
      $('body').css('padding-top',(startingpoint+25)+'px');
      size = startingpoint - distanceY;
      imgheight = startingpoint - 30 - distanceY;
      maxheight = startingpoint - 30 - leftright;
      if (minsize > size) {
          $("#header").css( "height", minsize+"px" );
      } else {
          $("#header").css( "height", size+"px" );
      }
      if (distanceY > leftright) {
              $("#smalllogo").css( "display", "inline" );
              $("#smalllogo").css( "float", "left" );
              $("#smalllogo").css( "max-height", maxheight+"px" );
      } else {
              $("#smalllogo").css( "display", "none");
      }
    };

    window.addEventListener('scroll', function(e){
        var distanceY = window.pageYOffset || document.documentElement.scrollTop,
        minsize = 30,
        startingpoint = $('#logotable').height()+160;
			  leftright = startingpoint - 60;
        $('body').css('padding-top',(startingpoint+25)+'px');
			  size = startingpoint - distanceY;
			  imgheight = startingpoint - 30 - distanceY;
			  maxheight = startingpoint - 30 - leftright;
        if (minsize > size) {
            $("#header").css( "height", minsize+"px" );
        } else {
            $("#header").css( "height", size+"px" );
        }
    		if (distanceY > leftright) {
                $("#smalllogo").css( "display", "inline" );
                $("#smalllogo").css( "float", "left" );
                $("#smalllogo").css( "max-height", maxheight+"px" );
    		} else {
                $("#smalllogo").css( "display", "none");
    		}
    });
}

$(document).ready(function() {
	$(window).resize(function(){ $('#nav2').css("display", "none");});
	$('head').append('<link rel="apple-touch-icon" href="https://www.mathsnz.com/icon.png">');
	$('body').append('<img src="https://tracking.jake4maths.com/mathsnzimage.php?url='+window.location.href+'" style="position:absolute;left:-100px;top:-100px;">');
	var y = $(window).scrollTop();
	$(window).scrollTop(y+1);
 });


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