JavaScript实现鼠标坐标获取与动态内容展示

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<head><title>鼠标的距离</title>
<script type="text/javascript">
var mouseX;
var mouseY;
function show(event) {
 var infoDiv = document.getElementById('infoDiv');
 mouseOver(event);
  document.getElementById("a").innerHTML = mouseX+" "+mouseY ;
  infoDiv.style.display = "block";
 //infoDiv.innerHTML = mouseX+" "+mouseY;
  infoDiv.style.left = mouseX + 10 + "px";
  infoDiv.style.top = mouseY + 10 + "px";  
}
function hide() {
  var infoDiv = document.getElementById('infoDiv').style.display = "none";;
}
function mouseOver(obj) {
  e = obj || window.event;
  // 此处记录鼠标停留在组建上的时候的位置, 可以自己通过加减常量来控制离鼠标的距离.
  mouseX = e.layerX|| e.offsetX;
  mouseY = e.layerY|| e.offsetY; 
  if(e.target.id == "aaa")
  {
    infoDiv.innerHTML = "aaa";
  }
  else if(e.target.id == "bbb")
  {
    infoDiv.innerHTML = "bbb";
  }
  else if(e.target.id == "ccc")
  {
    infoDiv.innerHTML = "ccc";
  }
  else if(e.target.id == "ddd")
  {
    infoDiv.innerHTML = "ddd";
  }else{
    infoDiv.innerHTML = "eee";
    }
}
</script>
</head>
<body>
<div onmousemove="show(event);" onmouseout="hide();" style="margin:150px ; background:#ff0; height:300px; width:300px; position:relative; ">鼠标相对于触发事件元素的位置<strong id="a"></strong>
  <div id="aaa">aaa</div>
  <div id="bbb">bbb</div>
  <div id="ccc">ccc</div>
  <div id="ddd">ddd</div>
 <div id="infoDiv" style="display: none; position: absolute; width: 100px; height: 100px; background-color: #F1F19B;"></div>
</div>
</body>
</html>