点击按钮显示图象

<script>
function clk(){
imgTest.style.left=event.clientX;
imgTest.style.top=event.clientY;
imgTest.style.display="";
}
</script><div style="WIDTH: 800px; HEIGHT: 600px; BACKGROUND-COLOR: red" onclick="clk()">
<img id="imgTest" width="10" height="10" style="POSITION: absolute; display:none">