<script>; <BR>function doclick🎜> <BR><script>; <BR>function doclick7(){ var txtN = document.getElementsByTagName("input"); <BR>for(i=0;i<txtN.length;i ){ <BR>if(txtN[i].type="text"){ <BR> txtN[i].readOnly=false; <BR>} <BR>} <BR>} <BR></腳本> <BR><input type="text" id="contactus1" readonly> <BR><input type="text" id="contactus2" readonly> <BR><輸入類型=“文本”id=“contactus3”只讀> <BR><input type="button" name="button4" value="修改" onclick="doclick1();" >> </script>