<script>function fclick(obj){ with(obj){ style.posTop=event.srcElement.offsetTop var x=event.x-offsetWidth/2 if(x<event.srcElement.offsetLeft)x=event.srcElement.offsetLeft if(x>event.srcElement.offsetLeft+event.srcElement.offsetWidth-offsetWidth)x=event.srcElement.offsetLeft+event.srcElement.offsetWidth-offsetWidth style.posLeft=x }}</script><style>input{border:1px solid #333333;color:#666666;background:#eeeeee;font:normal 12px Tahoma;height:18px}</style><form method="post" action="" enctype="multipart/form-data"><input id="f_file"> <input type="button" onmouseover="fclick(t_file)" value="选择上传文件"><input name="upload" type="file" style="position:absolute;filter:alpha(opacity=30);width:30px;" id="t_file" onchange="f_file.value=this.value" hidefocus><br><input type="submit" value="提交"></form>
懂得倾听别人的忠告。
