【原创】用JavaScript控制文件框的只读状态-CFANZ编程社区

<HTML>

<HEAD>

<title>用JavaScript控制文件框的只读状态</title>

</HEAD>

<BODY>

<SCRIPT LANGUAGE="JavaScript">

<!--

//功能：翻转文件框的只读状态

function  btnSetTxtBoxReadOnly_onClick(btnSetState, txtBox)

{

 var oldState  = txtBox.readOnly;

 txtBox.readOnly = !oldState;

 txtBox.value  = (oldState==true ? "可写" : "只读");

 btnSetState.value  = (oldState==true ? "设为只读" : "设为可写");

}

//-->

</SCRIPT>

<font color="purple" size="+2">用JavaScript控制文件框的只读状态---Purple Endurer原创</font>

<FORM name="frmTest">

<INPUT TYPE="text" NAME="txtTest" value="可写" />

<INPUT TYPE="button" name="btnSetTxtBoxReadOnly" value="设为只读" onClick="btnSetTxtBoxReadOnly_onClick(this, document.frmTest.txtTest)"/>

</FORM>

</BODY>

</HTML>