Scroll-Position mit Javascript ermitteln

function get_scroll_position() {
 var scroll_x = 0, scroll_y = 0;
 if (typeof( window.pageYOffset ) == 'number') { // Netscape
  scroll_y = window.pageYOffset; scroll_x = window.pageXOffset;
 }
 else if (document.body && (document.body.scrollLeft || document.body.scrollTop)) { // DOM
  scroll_y = document.body.scrollTop; scroll_x = document.body.scrollLeft;
 }
 else if (document.documentElement && (document.documentElement.scrollLeft || document.documentElement.scrollTop)) { // IE6
  scroll_y = document.documentElement.scrollTop; scroll_x = document.documentElement.scrollLeft;
 }
 return [scroll_x,scroll_y];
}
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