<body id=all>
<input type=file size=25 name=uploadfile2 title="按游览选择图片,然后点背景图片"> <a href="javascript:bj()" title="按游览选择图片,然后点背景图片">背景图片</a> <a href="javascript:bl()" title="按此清除背景图片">清除</a>
<script language="JavaScript">
function selec(ssss){
ssss.select();document.execCommand("Copy")}
function bl(){all.background=""}
function bj(){if(uploadfile2.value==""){alert("请按左边的按钮选择一张图片作为背景");}
else{all.background=uploadfile2.value}}
</script></body>
