<script language="javascript">
function selImg(s){
if(!s){return false;}
var h=s.substr(s.lastIndexOf(".")+1,3);
if(h=="gif"||h=="jpg"){
var txt=document.getElementById("txt")
o=document.createElement("IMG");
o.src=s;
txt.appendChild(o);
}
else{
alert("asp~")
}
}
</script>
<textarea id="txt" cols=60 rows=8></textarea><br>
<input id="img" type="file" value="选择图片">
<input type="button" value="添加" >