function addLoadEvent(func) {
  var oldonload = window.onload;
  if (typeof window.onload != 'function') {
    window.onload = func;
  } else {
    window.onload = function() {
      if (oldonload) {
        oldonload();
      }
      func();
    }
  }
}

addLoadEvent(function() {
	var y;
	var margin;
	var test1 = document.body.scrollHeight;
	var test2 = document.body.offsetHeight
	if (test1 > test2) {
	    y = document.body.scrollHeight;
	} else {
	    y = document.body.offsetHeight;
	}
	margin = y - 830;
	document.getElementById('logoLinks').style.marginTop = margin + 'px';
})