javascript获取鼠标精确坐标实例
<html>
<head>
<script language="javascript" type="text/javascript">
<!--
var domType = '';
if (document.all)
{
domType = "ie4";
}
else if (document.getElementById)
{
domType = "std";
}
else if (document.layers)
{
domType = "ns4";
}
function initMouseMove()
{
if(!document.all)
{
document.captureEvents(Event.MOUSEMOVE);
}
document.onmousemove = mouseMove;
}
function mouseMove(e)
{
var x,y;
if(!document.all)
{
fetch_object("txt").value="move";
x=e.pageX;
y=e.pageY;
}
else
{
x=document.body.scrollLeft+event.clientX;
y=document.body.scrollTop+event.clientY;
}
fetch_object("txt").value=x+":"+y;
}
var objects=new Array();
function fetch_object(idname, forcefetch)
{
if (forcefetch || typeof(objects[idname]) == "undefined")
{
switch (domType)
{
case "std":
{
objects[idname] = document.getElementById(idname);
}
break;
case "ie4":
{
objects[idname] = document.all[idname];
}
break;
case "ns4":
{
objects[idname] = document.layers[idname];
}
break;
}
}
return objects[idname];
}
function show(str)
{
noshow.style.display="";
noshow.style.display.width="500";
noshow.style.display.height="500";
noshow.style.display.position="absolute";
}
-->
</script>
<title>get mouse position</title>
</head>
<body onload="initMouseMove()">
<input id="txt"/>
</body>
</html>
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