表格鎖定、解開之用法

原始檔案 <form name="myform" method="post"> 選擇<input onclick="cholc()" type="checkbox" value="1" name="cho"> 輸入<input size="8" name="input"> 選擇二<select onchange="cholc2(this.selectedIndex)" name="cho2"> <option>1</option><option>2</option></select> 輸入二<select name="in2"></select></form> <script language="JavaScript"> function cholc() { if (document.myform.cho.checked) { document.getElementsByName("input")[0].readOnly=false; } else { document.myform.input.value = ''; document.getElementsByName("input")[0].readOnly=true; } } function cholc2(num) { if(num==1) { document.getElementsByName("in2")[0].disabled=false; } else { document.getElementsByName("in2")[0].disabled=true; } } </script>